10-6 M NaOH is diluted 100 times. The pH of the diluted base is
A
between 7 and 8
B
between 5 and 6
C
between 6 and 7
D
between 10 and 11
Question 2Single Answer
The respiratory quotient during cellular respiration would depend on
A
the nature of enzymes involved
B
the nature of the substrate
C
the amount of carbon dioxide released
D
the amount of oxygen utilised
Question 3Single Answer
Which Indian state was severely affected by landslides, leading to a high number of casualties and missing persons ?
A
Uttarakhand
B
Kerala
C
Maharashtra
D
Assam
Question 4Single Answer
Which Indian shuttler reached the quarterfinals of the Paris Olympics ?
A
PV Sindhu
B
Lakshya Sen
C
HS Prannoy
D
Kidambi Srikanth
Question 5Single Answer
A severe weather event hit which Indian city, causing widespread flooding and traffic disruptions ?
A
Mumbai
B
Delhi
C
Chennai
D
Kolkata
Question 6Single Answer
A high-profile sexual harassment case against which Indian bureaucrat took a new turn ?
A
Rakesh Asthana
B
Arvind Kejriwal
C
Pune Collector
D
Pradeepsinh Jadeja
Question 7Single Answer
"Who said, 'India was a parrot unto itself'?
A
Malik Muhammad Joyce
B
Raskhan
C
Rich Khusrow
D
Rich Hasan
Question 8Single Answer
Which is the national game of Bhutan ?
A
badminton
B
basketball
C
football
D
archery
Question 9Single Answer
When was the Constituent Assembly of India formed?
A
1946
B
1947
C
1948
D
1950
Question 10Single Answer
Who is known as the "Father of the Indian Renaissance" ?
A
Raja Ram Mohan Roy
B
Swami Vivekananda
C
Rabindranath Tagore
D
Mahatma Gandhi
Pedagogy, Curriculum & Education Policy
Question 11Single Answer
A Controlling Officer includes -
A
An officer entrusted by the Department with the responsibility of controlling the incurring of expenditure and or the collection of revenue
B
A Head of Department
C
An Administrator of a Union Territory
D
All of the above
Question 12Single Answer
Who is Desk Officer ?
A
Assistants and Upper Division Clerks
B
A Section Officer may be designated as Desk Officer, who is to function as per powers delegated by the Ministries/Departments like signing financial sanctions, affirming affidavits in court etc
C
In-charge of a Section who has to ensure efficient and expeditious disposal of work, recording and weeding out, indexing and digitization.
D
All of them
Question 13Single Answer
The duties and responsibilities of a Controlling Officer in respect of funds placed at his disposal are to ensure that -
A
The expenditure does not exceed the budget allocation
B
The expenditure is incurred for the purpose for which funds have been provided
C
Adequate control mechanism is functioning in the department to prevent, detect errors and irregularities in the financial proceedings and to guard against waste and loss of public money
D
All of the above
Question 14Single Answer
Which of the following sanctions is not to be endorsed to the Audit Officer ?
A
Sanctions of routine nature issued by Heads of Subordinate Offices
B
Sanctions issued by Ministries / Departments proper and under powers of a Head of Department
C
Sanctions relating to grant of advances to Government employees
D
Sanctions relating to payment or withdrawal of GPF advance to Government employees
Question 15Single Answer
Any loss or shortage of public moneys, departmental revenue or receipts, stores or other property, held by or on behalf of Government shall be immediately reported to -
A
The next higher authority
B
The Statutory Audit Officer
C
The concerned Principal Accounts Officer
D
All of the above
Question 16Single Answer
What is Information and Facilitation Counter (IFC) ?
A
A functionary on duty outside office hours who performs the functions of the central receipt and issue section during such hours.
B
A Facilitation counter, to provide information/ assistance to the citizens/clients about the programmes, schemes, status of cases, applications, etc.
C
A collection of papers on a specific subject, assigned a number and consisting of one or more
D
None of them
Question 17Single Answer
Minute is a meeting recorded by ?
A
President
B
Vice President
C
Prime Minster
D
All of them
Question 18Single Answer
Who is authorised to renew Pension Payment Order without reference to the Accountant General -
A
Disbursing Officer
B
Head of the Office
C
Accounts Officers
D
Administrative Officer
Question 19Single Answer
The following three aspects of intelligence are dealt by Sternberg's triarchic theory except
A
componential
B
social
C
experiential
D
contextual
Question 20Single Answer
Howard Gardner's theory of multiple intelligences emphasizes
A
general intelligence
B
common abilities required in school
C
the unique abilities of each individual
D
conditioning skills in students
Question 21Single Answer
In order to avoid gender stereotyping in class, a teacher should
A
try to put both boys and girls in nontraditional roles.
B
appreciate students' good work by saying 'good girl' or 'good boy'.
C
discourage girls from taking part in wrestling.
D
encourage boys to take risk and be bold.
Question 22Single Answer
Schools should cater to Individual differences to
A
narrow the gap between individual students.
B
even out abilities and performance of students.
C
understand why students are able or unable to learn.
D
make individual students feel exclusive.
Question 23Single Answer
What kind of support can a school provide to address the individual differences in students ?
A
Follow a child-centered curriculum and provide multiple learning opportunities to students
B
Apply every possible measure to remove the individual differences in students
C
Refer slow learners to special schools
D
Follow same level of curriculum for all students
Question 24Single Answer
"Readiness for learning " refers to
A
general ability level of students
B
present cognitive level of students in the learning continuum
C
satisfying nature of the act of learning
D
Thorndike's Law of Readiness
Question 25Single Answer
Learning disabilities may occur due to all of the following except
A
Cerebral dysfunction
B
Emotional disturbance
C
Behavioural disturbance
D
Cultural factors
Question 26Single Answer
Which of the following is appropriate for environment conducive to thinking and learning in children ?
A
Passive listening for long periods of time
B
Home assignments given frequently
C
Individual tasks done by the learners
D
allowing students to take some decisions about what to learn and how to learn
Question 27Single Answer
The National Education Policy 2020 was announced by which government body ?
A
Ministry of Human Resource Development
B
University Grants Commission
C
National Council of Educational Research and Training
D
NITI Aayog
Question 28Single Answer
The National Education Policy 2020 aims to provide education to children of which age group ?
A
3-6 years
B
6-14 years
C
14-18 years
D
18-23 years
Question 29Single Answer
Which of the following is NOT a key feature of the National Education Policy 2020 ?
A
Introduction of a 5+3+3+4 curricular structure
B
Emphasis on early childhood care and education
C
Focus on vocational training in schools
D
Promotion of multilingualism and language learning
Question 30Single Answer
The National Education Policy 2020 proposes the establishment of a National Research Foundation to promote research in which sector ?
A
Science and Technology
B
Social Sciences
C
Humanities
D
All of the above
Physics
Question 31Single Answer
Temperature can be expressed as derived quantity in terms of
A
length and mass
B
mass and time
C
length, mass and time
D
None of these
Question 32Single Answer
Electron volt is a unit of
A
potential difference
B
charge
C
energy
D
capacity
Question 33Single Answer
Dimensions of impulse are
A
[MLT β1]
B
[MLTΒ²]
C
[MTβ2]
D
[MLβ1Tβ3]
Question 34Single Answer
Potential is measured in
A
joule/coulomb
B
watt/coulomb
C
newtonβsecond
D
None of these
Question 35Single Answer
One Nanometer is equal to
A
10β9m
B
10β6m
C
10β10m
D
10β3m
Question 36Single Answer
Maxwell is the unit of
A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability
Question 37Single Answer
Which of the following is derived physical quantity ?
A
Mass
B
Velocity
C
Length
D
Time
Question 38Single Answer
What are the units of magnetic permeability ?
A
Wb Aβ1 mβ1
B
Wbβ1 Am
C
Wb A mβ1
D
Wb Aβ1 m
Question 39Single Answer
The dimensions of pressure gradient are
A
[MLβ2 Tβ2]
B
[MLβ2 Tβ1]
C
[MLβ1 Tβ1]
D
[MLβ1 Tβ2]
Question 40Single Answer
The dimensions of Rydberg's constant are
A
[M0Lβ1T]
B
[MLTβ1]
C
[M0 Lβ1T0]
D
[ML0 T2]
Question 41Single Answer
'Farad' is the unit of
A
resistance
B
conductance
C
capacitance
D
inductance
Question 42Single Answer
S.I. unit of surface tension is
A
degree/cm
B
N/m
C
N/mΒ²
D
Nm
Question 43Single Answer
Which one of the following pairs does not have the same dimension ?
A
Potential energy and Kinetic energy
B
Density and specific gravity
C
Focal length and height
D
Gravitational force and frictional force
Question 44Single Answer
Which one of the following physical quantity has the same unit as that of pressure ?
A
Angular momentum
B
Stress
C
Strain
D
Work
Question 45Single Answer
The symbol of SI unit of inductance is H. It stands for
A
Holm
B
Halogen
C
Henry
D
Hertz
Question 46Single Answer
Light year is a measure of
A
time
B
distance
C
total amount of light falling on the Earth in a year
D
average intensity of light falling on the Earth in a year
Question 47Single Answer
Which one of the following is not a dimension less quantity ?
A
Strain
B
Relative density
C
Frequency
D
Angle
Question 48Single Answer
The dimensions of universal gas constant are
A
[LΒ² MΒΉ Tβ2 Kβ1]
B
[LΒΉ MΒ² Tβ2 Kβ1]
C
[LΒΉ MΒΉ Tβ2 Kβ1]
D
[LΒ² MΒ² Tβ2 Kβ1]
Question 49Single Answer
The dimensions of magnetic moment are
A
[LΒ²AΒΉ]
B
[LΒ²Aβ1]
C
[LΒ²/AΒ³]
D
[LAΒ²]
Question 50Single Answer
The dimensions of Wien's constant are
A
[ML0TK]
B
[M0LT0K]
C
[M0L0TK]
D
[MLTK]
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Physics
Question 51Single Answer
The dimensional formula of wave number is
A
[M0L0Tβ1]
B
[M0Lβ1T0]
C
[Mβ1 Lβ1 T0]
D
[M0 L0 T0]
Question 52Single Answer
The dimensional of Hubble βs wave number is
A
[Tβ1]
B
[M0L0Tβ2]
C
[MLT4]
D
[MTβ1]
Question 53Single Answer
The dimensions of solar constant is
A
[M0L0T0]
B
[MLTβ2]
C
[MLΒ²Tβ2]
D
MTβ3
Question 54Single Answer
The dimensional formula for entropy is
A
[MLTβ2KΒΉ]
B
[ML2 T-2]
C
[MLΒ²Tβ2Kβ1]
D
[MLΒ²Tβ2K]
Question 55Single Answer
Dimension of specific heat are
A
[MLΒ² Tβ2 K]
B
[MLΒ² Tβ2 Kβ1]
C
[MLΒ²TΒ²Kβ1]
D
[LΒ²Tβ2Kβ2]
Question 56Single Answer
The physical quantity which has the dimensional formula [MΒΉTβ3] is
A
surface tension
B
solar constant
C
density
D
compressibility
Question 57Single Answer
Which one of the following elements is used as a timekeeper in atomic clocks ?
A
Potassium
B
Caesium
C
Calcium
D
Magnesium
Question 58Single Answer
Which one of the following is the value of one nanometer ?
A
10β7 cm
B
10β6 cm
C
10β4 cm
D
10β3 cm
Question 59Single Answer
What is the unit of pressure ?
A
Newton/sq. meter
B
Newtonβmeter
C
Newton
D
Newton/meter
Question 60Single Answer
The unit of pressure is
A
kg/cmΒ²
B
kg/cm
C
kg/mm
D
kg/cm3
Question 61Single Answer
Which one of the following quantities doe not have unit ?
A
Stress
B
Force
C
Strain
D
Pressure
Question 62Single Answer
Dimensional formula for thermal conductivity is here K denotes the temperature:
A
MLTβ2K
B
MLTβ2Kβ2
C
MLTβ3K
D
MLTβ3Kβ1
Question 63Single Answer
Which of the following is the unit of molar gas constant ?
A
JKβ1 molβ1
B
Joule
C
JKβ1
D
J molβ1
Question 64Single Answer
Density of liquid is 16.8 g cmβ3. Its value in the International System of Units is
A
16.8 kgmβ3
B
168 kgmβ3
C
1680 kgmβ3
D
16800 kgmβ3
Question 65Single Answer
The dimensional formula of couple is
A
[MLΒ² Tβ2]
B
[MLTΒ²]
C
[MLβ1Tβ3]
D
[MLβ2Tβ2]
Question 66Single Answer
Subtract 0.2 J from 7.26 J and express the result with correct number of significant figures.
A
7.1 J
B
7.06 J
C
7.0 J
D
7 J
Question 67Single Answer
Multiply 107.88 by 0610 and express the result with correct number of significant figures.
A
65.8068
B
65.807
C
65.81
D
65.8
Question 68Single Answer
When 97.52 is divided by 2.54, the correct result is
A
38.3937
B
38.394
C
38.39
D
38.4
Question 69Single Answer
Which of the following is the most accurate ?
A
200.0m
B
20 Γ 10ΒΉ m
C
2Γ10Β²m
D
data is inadequate
Question 70Single Answer
The area of a square is 5.29 cmΒ². The area of 7 such square taking into account the significant figures is:
A
37cmΒ²
B
37.030 cmΒ²
C
37.03 cmΒ²
D
37.0 cmΒ²
Question 71Single Answer
The SI unit of coeffient of mutual inductance of a coil is
A
henry
B
volt
C
farad
D
weber
Question 72Single Answer
The S.I. unit of pole strength is
A
AmΒ²
B
Am
C
Amβ1
D
Amβ2
Question 73Single Answer
Which is dimensionless ?
A
Force/acceleration
B
Velocity/accerleration
C
Volume/area
D
Energy/work
Question 74Single Answer
The expression [MLβ1Tβ2] does not represent
A
pressure
B
power
C
Stress
D
Young's modulus
Question 75Single Answer
The dimensional formul of current density is
A
[M0Lβ2Tβ1Q]
B
[M0L2T1Qβ1]
C
[MLTβ1Q]
D
[MLβ2Tβ1QΒ²]
Question 76Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Units)Β Β Β Β Β Β Β (Physical quantity)
A. WattΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. Electric charge
B. TeslaΒ Β Β Β Β Β Β Β Β Β Β Β Β Β 2. Power
C. CoulombΒ Β Β Β Β Β 3. Luminous intensity
D. CandelaΒ Β Β Β Β Β Β 4. Magnetic field
Select the correct answer from the codes given below :
A
A B C D
1 4Β 1Β 3
B
1 2Β 3 4
C
1 2Β 4Β 3
D
2 4 3Β Β 1
Question 77Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Physical quantity)Β Β Β (Units)
A. PowerΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. kg msβ1
B. EnergyΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. kg mΒ²sβ1
C. MomentumΒ Β Β Β Β Β Β Β Β 3. Nmβ2
D. PressureΒ Β Β Β Β Β Β Β Β Β Β Β Β 4. kW
Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 5. kWh
Select the correct answer from the codes given below :
A
A B C D
4 5 1Β 3
B
4 5 1 2
C
5 4 1 2
D
5 4 2 3
Question 78Single Answer
What is the correct sequence in which the lengths of the following units increase ?
(1) Angstrom
(2) Micron
(3) Nanometer
Select the correct answer from the codes given below :
A
1, 2, 3
B
3, 1, 2
C
1, 3, 2
D
2, 3, 1
Question 79Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Physical quantitiy)Β Β Β Β Β Β Β Β Β Β (Units)
A. DensityΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. [MLTβ2]
B. ForceΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. [MLβ3]
C. EnergyΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 3. [MLTβ1]
D. MomentumΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 4. [ML2Tβ2]
Select the correct answer from the codes given below :
A
A B C D
3 2Β 4Β 1
B
1 2 3 4
C
2 1 4 3
D
3 2 1 4
Question 80Single Answer
Match the List β I with List β II
List - IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List - II
(Physical quanitity)Β Β Β Β Β (Units)
A. Solid angleΒ Β Β Β Β Β Β Β Β Β Β 1. pascal
B. ImpulseΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. Steradian
C. ViscosityΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β 3. Newtonβsecond
D. PressureΒ Β Β Β Β Β Β Β Β Β Β Β Β Β 4. Pascalβsecond
Select the correct answer from the codes given below :
A
A B C D
2 4Β 3 1
B
2 3 4 1
C
1 4 3 2
D
1 3 4 2
Question 81Single Answer
Which of the following is most accurate ?
A
A screw gauge of least count 0.001 mm
B
A screw gauge having pitch 1 mm and 50 divisions on circular scale
C
A vernier callipers of least count 0.01 mm
D
Vernier callipers having 20 divisions on the sliding scale (vernier scale) coinciding 19 divisions on the main millimetre scale
Question 82Single Answer
Which of the following quantities has a unit but dimensionless ?
A
Strain
B
Reynolds number
C
Angular displacemet
D
Poisson's ratio
Question 83Single Answer
The displacement of a body at a particular second n is given by the expression Β The dimensional formula of Snth in this equation is
A
[MΒΉL0TΒΉ]
B
[M0L1T0]
C
[M0LΒΉTβ1]
D
[M0L0T0]
Question 84Single Answer
The division of energy by time is X. The dimensional formula ofX is same as that of
A
momentum
B
power
C
torque
D
electric field
Question 85Single Answer
The dimensions of electromotive force in terms of correntA are
A
[MT-2 A-2]
B
[ML2T-2 A2]
C
[ML2T-2 A -2]
D
[ML2T3 A-1]
Question 86Single Answer
[MLT-1] + [MLT-1] = β¦β¦β¦β¦β¦β¦
A
[M0L0T0]
B
[MLT-1]
C
2[MLT-1]
D
None of these
Question 87Single Answer
Which physical quantities have same dimensions ?
A
Moment of couple and work
B
Force and power
C
Latent heat and specific heat
D
Work in power
Question 88Single Answer
life is charge, V the potential difference, T the temperature, then the units ofΒ Β are the same as that of
A
planckβs constant
B
stefanβs constant
C
Boltzmann constant
D
gravitational constant
Question 89Single Answer
in the eqn. (V - b) = constant, the unit of a is
A
dyne Γ cm5
B
dyne Γ cm4
C
dyne Γ cm3
D
dyne Γ cm2
Question 90Single Answer
The least count of an instrument is 0.01 cm. Which of the following reding denotes the one, measured by this instrument ?
A
1.04 cm
B
2.001 cm
C
3.1 cm
D
None of these
Question 91Single Answer
Match the List β I and List β II
Β Β Β Β Β Β Β List β IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List β II
A. WavelengthΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 1. Herze
B. EnergyΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. Angstrom
C. Intensity of soundΒ Β Β Β Β Β 3. Joule
D. FrequencyΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 4. Decibel
Select the correct answer from the codes given below :
A
AΒ B C D Β Β Β Β
2Β 3Β 4Β 1
B
1 2Β 3 4
C
2 3 1Β 4
D
2 1Β 3Β 4
Question 92Single Answer
Match the List β I and List β II
List β IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List β II
A. TemperatureΒ Β Β Β Β Β Β Β Β Β Β 1. Kelvin
B.PowerΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 2. Watt
C.PressureΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 3. Pascal
D.ForceΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 4. Newton
Select the correct answer from the codes given below :
A
A B C D Β Β Β Β
2 1Β 3 4
B
1 2Β 4 3
C
1 2Β 3 4
D
2 1Β 4 3
Question 93Single Answer
Match the List β I and List β II
List β IΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β List β II
AccelerationΒ Β Β Β Β Β Β Β Β 1. Joule
Electric currentΒ Β Β Β Β 2. Newton second
Work doneΒ Β Β Β Β Β Β Β Β Β Β Β 3. Ampere
ImpulseΒ Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β Β 4. Metre per sec2
Select the correct answer from the codes given below :
A
A B C D Β Β Β
1 2Β 3 4
B
2 3 4 1
C
4 3 1 2
D
3 4 1 2
Question 94Single Answer
Which one of the following statements is correct ?
A
The measurement of mass taken by a spring weighing balance is correct at the place where the spring balance is calibrated for
B
The mesurment of mass taken by a spring weighing balance is correct at the all places
C
The measurement of mass taken by a spring weighing balance is correct at the place where the acceleration due to gravity is same with the place where the spring balance is calibrated for
D
A sping balance cannot be used to mesure mass at any place
Question 95Single Answer
Which one of the following statements is not correct ?
A
The SI unit charge is ampere β second
B
Debye is the unit of dipole moment
C
Resistvity of a wire of length / and area of crosssection a depends upon both / and a
D
The kinetic energy of an length of mass in kg and charge / coulomb when accelerated through a potential difference of V volt, is joule
Question 96Single Answer
If a body is moving at constant speed in a circular path, its
A
velocity is constant and its acceleration is zero
B
velocity and acceleration are both changing direction only
C
velocity and accleration are both increaing
D
velocity is constant and acceleration is changing direction
Question 97Single Answer
A graph is plotted showing the velocity of a car as a function of time. If the graph is a straight line, it means that
A
the car started at rest
B
acceleration was constant
C
acceleration was increasing
D
velocity was constant
Question 98Single Answer
If a car is traveling north on a straight road and its brakes are applied, it will
A
have no acceleration
B
accelerate to the south
C
accelerate to the north
D
accelerate either east or west
Question 99Single Answer
An object moves with a uniform velocity when
A
the forces acting on the object are balanced
B
there is no external force on it
C
Both of (a) and (b)
D
Either (a) or (b)
Question 100Single Answer
The acceleration of a car that speeds up from 12 meters per second to 30 meters per second in 15 seconds
A
2.4 m/sΒ²
B
1.2 m/sΒ²
C
2 m/sΒ²
D
5.2 m/sΒ²
Question 101Single Answer
A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distances s1 in the first 10 seconds and distances s2 in the next 10 seconds, then
A
s2 = s1
B
s2 = 2s1
C
s2 = 3s1
D
s2 = 4s1
Question 102Single Answer
Motion of an object is the change in position with respect to a reference point known as
A
Origin
B
initial position
C
final position
D
distance
Question 103Single Answer
Displacement is the
A
shortest distance between initial and final position
B
the actual distance between initial and final positions
C
the distance travelled by the object
D
distance traveled by the object in a unit time
Question 104Single Answer
An object has traveled 10 km is 15 minutes, its displacement will be
A
10 km
B
Can be zero
C
More than 10 km
D
All of the Above
Question 105Single Answer
If an object covers equal distances in equal intervals of time, it is said to be in
A
Circular Motion
B
Uniform Motion
C
Oscillatory Motion
D
Nonβ uniform Motion
Question 106Single Answer
Average velocity of an object is obtained by.
A
Dividing the total distance traveled b the total time taken
B
Half of the sum of the initial velocity and the final velocity
C
Both (a) and (b)
D
None of the above
Question 107Single Answer
Negative value of acceleration signifies.
A
The velocity is increasing
B
The velocity is decreasing
C
The velocity remains the same
D
The object comes to rest
Question 108Single Answer
In distanceβtime graphs.
A
Distance is taken along the Xβaxis
B
Time is taken along the Yβaxis
C
Straight line indicates uniform motion
D
Straight line indicates nonβuniform motion
Question 109Single Answer
In velocity β time graphs.
A
Velocity is taken along the Yβaxis and Time is taken along the Xβaxis
B
Straight line indicates uniform acceleration
C
Straight line parallel to xβaxis indicates uniform motion
D
All of the above
Question 110Single Answer
The equation (s) of motion can be represented as.
A
V = u + at
B
C
2as = vΒ² β uΒ²
D
All of these
Question 111Single Answer
A train travels 40 km at a uniform speed of 30 km hβ1. Its average speed after traveling another 40 km is 45 km hβ1 for the whole journey. Its speed in the second half of the journey is.
A
45 km hβ1
B
90 km hβ1
C
60 km hβ1
D
None of these
Question 112Single Answer
A man walks on a straight road from his home to market 2.5km. away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to β
A
5 km/h
B
25/4 km/h
C
30/4 km/h
D
45/km/h
Question 113Single Answer
A ball is dropped from a window 24 meters high. How long will it take to reach the ground ?
A
2.2 s
B
1.2 s
C
4.5 s
D
0.2s
Question 114Single Answer
Mohan takes 20 minutes to cover a distance of 3.2 kilometers due north on a bicycle, his velocity in kilometer/hour-
A
8.1
B
9.6
C
1.2
D
7.2
Question 115Single Answer
A Pitcher throws his fastball horizontally at 42.1 meters per second. How far does it drop before crossing the plate, 18.3 meters away ?
A
0.8 m
B
1.2m
C
2.2m
D
0.93 m
Question 116Single Answer
Two balls A and B of same masses are thrown from the top of the building. A, thrown upward with velocity V and B, thrown downward with velocity V, thenβ
A
Velocity of A is more than B at the ground
B
Velocity of B is more than A at the ground
C
Both A and B strike the ground with same velocity
D
None of these
Question 117Single Answer
A ball is released from the top of a tower of height h meters. It takes T seconds to reach the ground. What is the position of the ball in T/3 secondsβ
A
h/9 meters from the ground
B
7h/9 meters from the ground
C
8h/9 meters from the ground
D
17h/18 meters from the ground
Question 118Single Answer
When a bus suddenly takes a turn, the passengers are thrown outwards because of-
A
inertia of motion
B
acceleration of motion
C
speed of motion
D
Both (b) and (c)
Question 119Single Answer
A thief snatches a purse and runs due west, going 6.0 meter per second. A policeman, 15 meters to the east, sees the event and gives chase. If the officer is a good sprinter, going at 8.5 meters per second, how far does he have to run to catch the thief.
A
12 m
B
51 m
C
61 m
D
55 m
Question 120Single Answer
A car going at 24 meters per second passes a motorcycle at rest. As it passes, the motorcycle start up, accelerating at 3.2 meters per second squared. If the motorcycle can keep up that acceleration, how long will take for it to catch the car.
A
12 s
B
14s
C
20s
D
18s
Question 121Single Answer
The initial velocity of a body is 15 m/s. If it having an acceleration of 10 m/sΒ², then the velocity of body after 10 seconds from start-
A
110 m/s
B
105 m/s
C
120 m/s
D
115 m/s
Question 122Single Answer
Which of the following can be zero, when a particle is in motion for some time ?
A
Distance
B
Displacement
C
Speed
D
None of these
Question 123Single Answer
The numerical ratio of average velocity to average speed is.
A
always less than one
B
always equal to one
C
always more than one
D
equal to or less than one
Question 124Single Answer
A passenger in a moving train tosses a coin. If the coin falls behind him, the train must be moving with.
A
an acceleration
B
a deceleration
C
a uniform speed
D
any of the above
Question 125Single Answer
A body is imparted motion from rest to move in a straigh line. If it is then obstructed, by an opposite force, then.
A
the body may necessarily change direction
B
the body is sure to slow down
C
the body will necessarily continue to move in the same direction at the same speed
D
None of these
Question 126Single Answer
Which of the following decreases in motion along a straight line with constant retardation while the body is moving away from the origin ?
A
Speed
B
Acceleration
C
Displacement
D
None of these
Question 127Single Answer
Which of the following is not an example of linear motion ?
A
An aeroplane moving on a straight track with increasing speed
B
A body in uniform circular motion
C
Wheel rotating at uniform speed on road
D
A body rolling down an inclines plane
Question 128Single Answer
Which of the following changes when a particle is moving with uniform velocity ?
A
Speed
B
Velocity
C
Acceleration
D
Position vector
Question 129Single Answer
Which one out of the following statement is false ?
A
A body can have zero velocity and still be accelerated
B
A body can have a constant velocity and still have a varying speed
C
A body can have a constant speed and still have a varying velocity
D
The direction of the velocity of a body can change when its acceleration is constant
Question 130Single Answer
What determines the nature of the path followed by the particle.
A
speed
B
velocity
C
acceleration
D
both (b) and (c)
Question 131Single Answer
A body is thrown upwards and reaches its maximum height. At that position.
A
its acceleration is minimum
B
its velocity is zero and its acceleration is also zero
C
its velocity is zero but its acceleration is maximum
D
its velocity is zero and its acceleration is the acceleration due to gravity
Question 132Single Answer
A train is moving towards east and a car is along north, both with same speed. The observed direction of car to the passanger in the train is-
A
eastβnorth direction
B
westβnorth dircection
C
southβeast direction
D
None of these
Question 133Single Answer
The displacementβtime graphs of two particles A and B are straight lines making angles of respectively 30Β° and 60Β° with the time axis. If the velocity of A is vA and that of B is vB the value of vA/vB is.
A
1/2
B
C
D
1/3
Question 134Single Answer
Figure shows the vβt graph for two particles P and Q. Which of the following statements regarding their relative motion is true ? Their relative velocity is
Β
A
is zero
B
is nonβzero but constant
C
continuously decreases
D
continuously increases
Question 135Single Answer
Sound velocity is usually larger in solids than in liquids and gases because :
A
solids are more elastic than liquids and gases
B
solids are less elastic than liquids and gases
C
volumetric expansion coefficients of liquids and gases are higher than solids
D
frequency of sound waves decreases in solids due to Doppler shift
Question 136Single Answer
In which of the following cases, the object does not possess an acceleration or retardation when it moves in.
A
upward direction with decreasing speed
B
downward direction with increasing speed
C
with constant speed along circular path
D
with constant speed along horizontal direction
Question 137Single Answer
The speed of a falling body increases continuously, this is because.
A
no force acts on it
B
it is very light
C
the air exert the frictional force
D
the earth attract it
Question 138Single Answer
If a Candle is make to burn in Zero Gravity__ :
A
The Candle will burn for a very long time compared to normal gravity
B
The flame of the candle will become round
C
There is no impact of gravity on the burning of candle
D
The Candle will not burn in zero gravity
Question 139Single Answer
A jet engine works on the principle of conservation of
A
Linear momentum
B
Angular momentum
C
Energy Mass
D
Mass Velocity
Question 140Single Answer
What is the scale used for measuring the intensity of the earthquake ?
A
Metric Scale
B
Quake Scale
C
Richter Scale
D
Epicentre Scale
Question 141Single Answer
When a motorcar makes a sharp turn at a high speed, we tend to get thrown to one side because.
A
we tend to continue in our straight line motion
B
un unbalanced force is applied by the engine of the motorcar changes the direction of motion of the motorcar
C
we slip to one side of the seat due to the inertia of our body
D
All of these
Question 142Single Answer
Nuclear Reactors are based on which of the following phenomenon ?
A
Magnetic confinement of Plasma
B
Nuclear Fusion
C
Controlled Nuclear Fission
D
None of the above
Question 143Single Answer
Optical Fibre technology works on which of these principles of Physics ?
A
Bernoulliβs Principle
B
Newtonβs law of Motion
C
Total internal reflection of Light
D
Photoelectric effect
Question 144Single Answer
If an object experience a net zero unbalanced force, then the body.
A
can be accelerated
B
moves with constant velocity
C
cannot remain at rest
D
None of these
Question 145Single Answer
A cardboard is placed on a glass of water, and a ten paise coin is placed on the cardboard. If the cardboard is flicked suddenly in the direction parallel to its surface, then the cardboard flies away, but the coin falls in the glass .
The behaviour of the coin can be explained by which among the following properties ?
A
Momentum
B
Acceleratio
C
Inertia
D
Friction
Question 146Single Answer
The physical quantity which is the product of mass and velocity of a body is known as.
A
inertia
B
momentum
C
force
D
change in momentum
Question 147Single Answer
Rate of change of momentum of an object is proportion to the.
A
blanced force applied
B
applied unbalanced force in the dirction of the force
C
time during which the force is applied
D
All of these
Question 148Single Answer
A moving object can come to rest only if it.
A
has a frictional force acting only if it
B
has no net force acting on it
C
is completely isolated
D
applies an impulse to something else
Question 149Single Answer
When a body is stationery-
A
There is no forece acting it
B
The force acting on it not in contact with it
C
The combination of forces acting on it balances each other
D
None of above
Question 150Single Answer
A rider on horse falls back when horse starts running , all of a sudden because.
A
rider is taken back
B
rider is suddenly afraid of falling
C
inertia of rest keeps the upper part of body at rest while lower part of the body moves forward with the horse
D
None of above
Question 151Single Answer
Echoes are heard when we shout in an empty hall. But when the hall is full of people no echoes are heard why ?
A
Echoes are subdued in the noise of people
B
Soft clothes of people absorb sound instead of reflecting it
C
Destructive interference of sound takes place
D
Excessive reverberations take place
Question 152Single Answer
Swimming is possible on account of.
A
first low of motion
B
second low of motion
C
third low of motion
D
newtonβslow of motion
Question 153Single Answer
A parrot is sitting on the floor of a closed glass cage which is in a boyβs hand. If the parrot starts flying with a contant speed, the boy will feel the weight of the cage as.
A
unchanged
B
reduced
C
inceased
D
nothing can be said
Question 154Single Answer
A man is at rest in the middle of a pond on perfectly smooth ice. He can get himself to the shore by making use of Newtonβs.
A
first low
B
second low
C
third law
D
all the laws
Question 155Single Answer
A cannon after firing recoils due to -
A
conservation of energy
B
backward thrurd of gases produced
C
Netonβs third law motion
D
Newtonβs first low of mation
Question 156Single Answer
Netonβs third low of motion leads in the low conservation of-
A
angular momentum
B
energy
C
mass
D
momentum
Question 157Single Answer
The force of friction acting on a car on different roads in the increasing order of magnitude will be.
A
mud, tar concrete and gravel roads
B
tar, concrete, gravel and roads
C
concrete, mud, tar and concrete roads
D
gravel, mud, tar and concrete roads
Question 158Single Answer
Which of the following makes a CD or DVD show rainbow pattern ?
A
Diffraction of the Light
B
Thin-Film Interference of the light
C
Scattering of the light
D
Polarisation of the light
Question 159Single Answer
When a bus suddenly takes a turn, the passengers are thrown outwords because of-
A
inertia of motion
B
acceleration of motion
C
speed of motion
D
Both (b) and (c)
Question 160Single Answer
A ball is thriwn vertically upward form the ground with a speed of 25.2 m/s. The ball will reach the highest point of its journey in.
A
5.14 s
B
3.57 s
C
2.57 s
D
129 s
Question 161Single Answer
If the distance S covered by a moving car in rectilinear motion with a speed v in time t is given by S = vt then the car undergoes.
A
a uniform acceleration
B
a non β uniform accleration
C
a uniform velocity
D
a non uniform velocity
Question 162Single Answer
An automobile travelling with a speed of 60 km/h, can apply brake to stop within a distance of 20m If the car is going twice as fast i.e 120 km/h, the stopping distance will be.
A
60 m
B
40 m
C
20 m
D
80 m
Question 163Single Answer
A stone thrown vertically upwards with a speed of 5 m/sec attains a height H1 Another stone thrown upwards from H2 The correct relation between H1 and H2 is.
A
H1 = 4H2
B
H2 = 3H2
C
H1 = 2H2
D
H1 = H2
Question 164Single Answer
A food packet is released form a helicopter rising steadity at the speed of 2m/sec. After 2 secounds the velocity of the packet is (g = 10 m/sec2).
A
22 m/sec
B
20 m/sec
C
18 m/sec
D
None of these
Question 165Single Answer
A stone thrown upward with a speed u from the top of the tower reaches the ground with a velocity 3u The height of the tower is.
A
3u2/g
B
4u2/g
C
6u2/g
D
9u2/g
Question 166Single Answer
A ball is dropped downwards, after 1 sec another ball is dropped downwards from the same point What is the distance between them after 3 sec ?
A
25 m
B
20 m
C
50 m
D
9.8 m
Question 167Single Answer
A stone is thrown vertically upwards When the particle is at a height half of its maximum height its 10 m/sec, then maximum height attain by partical is (g = 10m/sec2).
A
8 m
B
10 m
C
15 m
D
20 m
Question 168Single Answer
A body released from the top of a tower falls through half the height of the lower in 2 s In what time shall the body fall through the height of the tower ?
A
4 s
B
3.26 s
C
3.48 s
D
2.828
Question 169Single Answer
A body travels 2m in the frist two second 2. 20m in the next 4 second with uniform deceleration The velocity of the body at the end of 9 second is.
A
β 10 ms- 1
B
β 0.20 ms- 1
C
β 0.40 ms- 1
D
β 0.80 ms- 1
Question 170Single Answer
from a 200m tower one ball is thrown upwards with speed of 10 ms- 1 and another is thrown vertically downwards at the same simultaneously The time difference of their reaching the ground will be nearest to.
A
12 s
B
6 s
C
2 s
D
1 s
Question 171Single Answer
A car travels from A to B at a speed of 20 km h-1 and returns at a speed of 30km h-1 and returen at a speed of 30 km h-1 The averge speed of the car for the whole journey is.
A
5 km h- 1
B
24 km h- 1
C
25 km h- 1
D
50 km h- 1
Question 172Single Answer
A man leavels his house for a cycle ride He comes back to his house after half β an β hour after covering a distance of one km What is his average velocity for the ride ?
A
zero
B
2 km h- 1
C
10 km h- 1
D
Question 173Single Answer
A boy moving with a velocity 20 km h- 1 along a straight line joining two stationery objects According to him both objects.
A
move in the same direction with same speed of 20 km h- 1
B
move in different direction with the same speed of 20 km h- 1
C
move towards him
D
remain statioary
Question 174Single Answer
If you were to throw a ball vertically upward with an initial velocity of 50 m/s approximately how long would it take for the ball to return to your hand ? Assume air resistance is negligible ?
A
2.5 s
B
5.0 s
C
7.5 s
D
10 s
Question 175Single Answer
Two trains are each 50 m long moveing parallel towards each othere at speeds 10 m/s 15 m/s respectively After what time will they pass each other ?
A
B
4 sec
C
2 sec
D
6 sec
Question 176Single Answer
A passenger travels along the straight road for half the distance with velocity v1 and the remaining half distance with velocity v2. Then averge velocity is given by.
A
v1 v2
B
v22/ v12
C
(v1 + v2)/2
D
2 v1 v2/ (v1 + v2)
Question 177Single Answer
A bullet is fired vertically up from a 400 m tall tower with a speed m/s Ifg is taken as 10 m/ s2 , the taken by the bullet to reach the ground will be.
A
8 s
B
16 s
C
20 s
D
24 s
Question 178Single Answer
An object is moving with uniform acceleration a Its initial velocity is u and after time t its velocity is v The equation of its motion is v =u+ at The velocity (along y - axis) time (along x axis) graph shall be a straight line.
A
passing through origin
B
with x β intercept u
C
with y β intercept u
D
with slope u
Question 179Single Answer
A boy throws four stones of same shape size and weight with equal speed at different initial angles with the hori zontal line If the angles are.
A
15o
B
30o
C
45o
D
60o
Question 180Single Answer
The motion of a car along a straight path is shown by the following figure :
Β The car starts O and reches at A , B and C different instants of time During its motion from O to C and back to B, the distance coerved and magnitude of the displace-Β Β Β
A
25 km and 60 km
B
95 km and 35 km
C
60 km and 25 km
D
85 km and 35 km
Question 181Single Answer
A brass ball is tied to a thin wire and swung so as to move uniformaly of time During its motion form O to C and back to B, the distance covered and and the magnitude of the displacement are, in this regard is /are ture ?
1. The ball moves with constant velocity
2. The ball moves with constant speed
3. The ball moves with constant acceleration
4. The magnitude of the acceleration of the ball is constant
Select the correct answer using the code given below :
A
1 only
B
1 only 3
C
1, 2 only 4
D
2, and 4 only
Question 182Single Answer
Which of the following statement is not correct ?
A
If the velocity and acceleration have opposite sign, the object is slowing down
B
If the velocityΒ is zero at an instant, the acceleration should also be zero at that instant
C
If the velocityΒ is zero for a time interval ; the acceleration is zero at any instant Β within the time interval
D
If the position and velocity have opposite sign, the object is moving towards the origin
Question 183Single Answer
In a vacuum a five rupee coin a feather of a sparrow bird and mango are dropped simultaneously from the same height the time taken by them to reach the bottom it t1, t2 and t3 respectively In this situation, we will observe that.
A
t1 > t2 > t3
B
t1 > t3 > t2
C
t3 > t1 > t1
D
t1 = t2 = t3
Question 184Single Answer
A particle moves with uniform acceleration along a straight line from rest The percentage increase in displacement during sixth second compered to that in fifth second is about.
A
11%
B
22%
C
33%
D
44%
Question 185Single Answer
By applying a force of one Newton, one can hold a body of mass.
A
102 grams
B
102 kg
C
102 mg
D
None of these
Question 186Single Answer
Friction forces act.
A
in the direction of force applied
B
in the direction of the motion
C
in the direction opposite to the direction of motion
D
None of these
Question 187Single Answer
The effect of frictional force may be minimized by.
A
using a smooth object
B
using a smooth plane
C
providing a lubricant at the surface of contact
D
All of these
Question 188Single Answer
When a bus suddenly starts, the standing passengers lean backwards in the bus. It is an example of.
A
Newton's first law
B
Newton's second law
C
Newtron's third law
D
None of Newton's law
Question 189Single Answer
Momentum has the same units as that of.
A
couple
B
torque
C
impulse
D
force
Question 190Single Answer
When a force of newton acts on a mass of 1 kg that is free to move, the object moves with a.
A
speed of 1m/s
B
speed of 1 km/s
C
acceleration of 10 m/sΒ²
D
acceleration of 1m/sΒ²
Question 191Single Answer
If an object experience a net zero unbalanced force, then the body.
A
can be acclerated
B
moves with constant velocity
C
cannot remain at rest
D
None of these
Question 192Single Answer
A hockey player pushes the ball on the ground. It comes to rest after travelling certain distance because.
A
the player stops pushing the ball
B
no unbalanced force action on the wall
C
the ball moves only when pushes
D
the opposing force acts on the body
Question 193Single Answer
The physical quantitiy which is the product of mass and velocity of a body is known as.
A
inertia
B
momentum
C
force
D
change in momentum
Question 194Single Answer
Rate of change of momentum of an object in proportional to the.
A
balanced force applied
B
applied unbalanced force in the direction of the force
C
time during which the force is applied
D
All of these
Question 195Single Answer
A book of weight 10 N is placed on a table. The force exerted by the surface of the table on the book will be.
A
Zero
B
10 N
C
20 N
D
None of these
Question 196Single Answer
When a body is stationary-
A
There is no force acting on it
B
The force acting on it not in contact with it
C
The combination of force acting on it balances each other
D
The body is in vaccum
Question 197Single Answer
A rider on horse falls back when horse starts running, all of a sudden because.
A
rider is taken back
B
rider is suddenly afraid of falling
C
inertia of rest keeps the upper part of body at rest while lower part of the body moves forward with the horse
D
None of the above
Question 198Single Answer
A man getting down a running bus, falls forward because.
A
due to inertia of rest, road is left behind and man reaches forward
B
due to inertia of motion upper part of body continues to be in motion in forward direction while feet come to rest as soon as they touch the road
C
he leans forward as a matter of habit
D
of the combined effect of all the three factors started in (a), (b) and (c)
Question 199Single Answer
A force 10N acts on a body of mass 20 kg for 10 sec. Change in its momentum is.