Question for SSB Head Constable 2026 - Quiz / Questions / MCQ

Objective Questions

Latest SSB Head Constable Exam Question (Objective Questions), MCQ in English

Subjects : General Knowledge, Numerical Ability, General English, General Reasoning, Physics

Question Bank SSB Head Constable Communication (Physics) Exam - English

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General Knowledge

Question 1Single Answer

Yojna a weekly journal

A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission

Question 2Single Answer

Kurukshetra a journal on rural development is published by

A
Ministry of Finance
B
Ministry of Information and Broadcastin
C
Ministry of Rural Development
D
Planning Commission

Question 3Single Answer

Devaluation of a currency means

A
Fixing the value of the currency in conjuction with the movement in the value of a basket of predetermined currencies
B
Reduction in the value of a currency vis-à-vis major internationally traded currencies
C
Fixing the value of currency in multilateral consultaion with the IMF the World Bank and major trading partners
D
Permitting the currency to seek its worth in the international market

Question 4Single Answer

In India rural incomes are generally lower than the urban incomes, which of the following reasons account for this
1. a large number of farmers are illiterate and know little about scientific agriculture
2. prices of primary products are lower than those of manufactured products
3. Investments in agriculture has been low when compared to investment in industry

A
1 and 3
B
2 and 3
C
1 and 2
D
1,2 and 3

Question 5Single Answer

Which of the following programmes aims at the promotion of savings among rural women

A
Rashtriya Mahila Kosh
B
Indira Mahila Yojna
C
Jawahar Rozgar Yojna
D
Mahila Samridhi Yojna

Question 6Single Answer

What is Net National Product

A
the money value of final goods and services produced annually in the economy
B
the money value of annual service generation in the economy
C
the money value of tangible goods produced annually in the economy
D
The money value of tangible goods available in the economy

Question 7Single Answer

National income is the

A
net national product at market price
B
net national product at factor cost
C
net domestic product at market price
D
net domestic product at factor cost

Question 8Single Answer

Chelliah Committee of 1992 deals with the overhauling of our

A
financial system
B
tax system
C
patents and copyrights
D
Public sector undertakings

Question 9Single Answer

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 10Single 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 11Single Answer

"Who said, 'India was a parrot unto itself'?

A
Malik Muhammad Joyce
B
Raskhan
C
Rich Khusrow
D
Rich Hasan

Question 12Single Answer

When was the Constituent Assembly of India formed?

A
1946
B
1947
C
1948
D
1950

Question 13Single 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

Question 14Single Answer

Who is known as the "Missile Man of India"?

A
Dr. Homi J. Bhabha
B
Dr. Vikram Sarabhai
C
Dr. APJ Abdul Kalam
D
Dr. Satish Dhawan

Question 15Single Answer

In a centrally planned economy, what is the primary mechanism for resource allocation?

A
Market prices
B
Government directives
C
Consumer preferences
D
Private enterprise

Question 16Single Answer

What significant political change occurred in South Korea on July 1, 2026?

A
New Prime Minister Han Seong-sook took office
B
Presidential elections were held
C
Parliament was dissolved
D
King was crowned

Question 17Single Answer

What was the rainfall deficit in India for June 2026, described as the driest in over a century?

A
20% below average
B
39.8% below average
C
15% above average
D
Normal rainfall

Question 18Single Answer

Where was the GCC Conclave on Innovation 2026 held?

A
Bengaluru
B
New Delhi
C
Mumbai
D
Hyderabad

Question 19Single Answer

Which health initiative's operational guidelines were unveiled by the Union Health Ministry around July 1, 2026?

A
Universal Health Coverage
B
Ayushman Bharat expansion only
C
TB-free India 2030
D
National Ambulance Services 2026

Question 20Single Answer

What reform was implemented in GST 2.0 (effective from September 2025)?

A
Removal of all cesses
B
Single 12% slab
C
Primarily two tax slabs of 5% and 18%
D
Only state-level taxation

Numerical Ability

Question 21Single Answer

The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?

A
51:52
B
52:53
C
51:53
D
52:55

Question 22Single Answer

Which of the following numbers is irrational ?

A
√49
B
0.125
C
√2
D
22/7

Question 23Single Answer

356 x 936 – 356 x 836 = ?

A
35600
B
34500
C
9630
D
93600

Question 24Single Answer

Arrange in descending order: 5/8, 7/10, 3/4

A
3/4 > 7/10 > 5/8
B
7/10 > 3/4 > 5/8
C
3/4 > 5/8 > 7/10
D
5/8 > 7/10 > 3/4

Question 25Single Answer

What is (3^{^}{4} times 9^{^}{2}) ?

A
3⁶
B
3⁸
C
3¹⁰
D
9⁶

Question 26Single Answer

If 3⁴X^-2 = 729, then find the value of X.

Question 27Single Answer

Convert 0.6 into fraction ?

A
3/5
B
2/3
C
4/5

Question 28Single Answer

The no. plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate numbers were reversed. The bus company had only five hundred buses numbered from 1 to 500. What was the number ?

A
169
B
36
C
196
D
Can not say

Question 29Single Answer

If a and b are positive integers, such that ab = 125, then (a-b)^a+b-4= ?

A
16
B
25
C
28
D
30

Question 30Single Answer

If x^*y = x² + y² – xy, then value of 9^*11 is

A
93
B
103
C
60.5
D
121

General English

Question 31Single Answer

Passage :

Direction : Question below has two blanks, each blank indicting that some thing has been omitted. Choose the word for each blank which best fits the meaning of the sentence as a whole.

The Finance Department has ……………a centralized online databank system for all statutory government bodies to …………an eye on their assets and liabilities.

A
presented , stay
B
introduced , keep
C
announce , make
D
created , let
E
proclaimed , hold

Question 32Single Answer

Passage :

Direction : The five items in this section consists of a word or group of words followed by four words as (a), (b), (c) and (d). Select the word which is nearly opposite to the meaning of the original word or group of words and mark your response as (a), (b), (c) and (d), as the case may be, in your Answer Sheet.

Assets

A
liabilities
B
responsibilities
C
estates
D
profits

Question 33Single Answer

Passage :

Direction : In the question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Affidavit

A
Affirmation
B
Slander
C
Oath
D
Testimony

Question 34Single Answer

Passage :

Direction: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Hollow

A
Alveolate
B
Cleft
C
Cavernous
D
Solid

Question 35Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Cosset

A
Ignoreb
B
Close
C
Caress
D
Fondle

Question 36Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Ogle

A
Leer
B
Gaze
C
Ignore
D
Gawk

Question 37Single Answer

Passage :

Directions:In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Intrinsic

A
Elemental
B
Innate
C
Connate
D
Acquired

Question 38Single Answer

Passage :

Direction : In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Coalesce

A
Separate
B
Adhere
C
Cleave
D
Amalgamate

Question 39Single Answer

Passage :

Directions: In the following question, out of the four alternatives, choose the word which is opposite in meaning to the given word and click the button corresponding to it

Loiter

A
lag
B
Hasten
C
Amble
D
Loii

Question 40Single Answer

Passage :

Direction : Question below has two blanks, blank indicating that something has been omitted. Choose the set of words for blank which best fits the meaning of the sentence as a whole.

The protests were......... at ......... awareness among the elite and the educated.

A
held, generating
B
aimed, creating
C
targeted, awakening
D
focused, building
E
concentrated, producing

General Reasoning

Question 41Single Answer

What is the next number in the series: 2, 4, 6, 8, ?

A
9
B
11
C
10
D
12

Question 42Single Answer

What comes next in the series: A, B, C, D, ?

Question 43Single Answer

What is the missing number in the series: 1, 4, 9, 16, ?

A
20
B
36
C
30
D
25

Question 44Single Answer

What follows in the series: 3, 6, 9, 12, ?

A
13
B
15
C
14
D
16

Question 45Single Answer

What is the next term in the series: J, F, M, A, ?

Question 46Single Answer

What comes next: 5, 10, 15, 20, ?

A
25
B
30
C
35
D
40

Question 47Single Answer

What is the missing letter: A, C, E, G, ?

Question 48Single Answer

What follows: 1, 8, 27, 64, ?

A
81
B
100
C
125
D
144

Question 49Single Answer

What is next in the series: 10, 20, 30, 40, ?

A
45
B
55
C
50
D
60

Question 50Single Answer

What comes after: Z, Y, X, W, ?

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Physics

Question 51Single Answer

In ruby laser, the stimulated emission is due to transition from

A
metastable state to any lower state
B
any higher state of lower state
C
metastable state to ground state
D
any higher state to ground state

Question 52Single Answer

A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is

A
uniform throughout the pipe not zero
B
zero only along the axis of the pipe
C
zero at any point inside the pipe
D
maximum at the centre and minimum at the edge

Question 53Single Answer

convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2, and that of water is 4/3 the focal length of lens when immersed in water is

A
0.45 m
B
0.15 m
C
0.30 m
D
0.6 m

Question 54Single Answer

Two sources are said to be coherent if they produce waves

A
having a constant phase difference
B
of equal wavelength
C
of equal speed
D
having same shape of wavefront

Question 55Single Answer

Three resistors 1 Ω, 2 Ω, 3Ω resistor a 3 V battery is connected. The current through 3 Ω resistor is -

A
0.75 A
B
1 A
C
2 A
D
1.5 A

Question 56Single Answer

In a common emitter amplifier the input signal is applied across

A
anywhere
B
emitter-collector
C
collector-base
D
base-emitter

Question 57Single Answer

Adding detergents to water helps in removing dirty greasy stains. This is because
1. It increases greasy stains. This is because
2. It decreases the oil-water surface tension
3. It increases the viscosity of the solution
4. Dirt is held suspended surrounded by detergent molecules

A
2 and 4
B
1 only
C
3 and 4
D
4 only

Question 58Single Answer

Choose the correct statement (a) for a cricket ball that is spinning clockwise through air
S1 : Statemlines of air are symmetric around the ball.
S2 : The velocity of air above the ball relative to it is larger than that below the ball.
S3 : The velocity of air above the ball relative to it is smaller than that below the ball.
S4 : There is a net upward force on the ball.

A
S1,S2 and S4
B
S2 and S4
C
S4 only
D
S3 only

Question 59Single Answer

Ferromagnetic materials used in a transformer must have

A
low permeability and high hysterisis loss
B
high permeability and low hysterisis loss
C
high permeability and high hysterisis loss
D
low permeability and low hysterisis loss

Question 60Single Answer

According to Newton’s corpuscular theory, the speed of light is

A
same in all the medium
B
lesser in rarer medium
C
lesser in denser medium
D
independent of the medium

Question 61Single Answer

For the constructive interference the path difference between the two interfering waves must be equal to

A
(2𝜋 + 1)λ
B
2n𝜋
C
nλ
D
n

Question 62Single Answer

The accurate measurement of emf can be obtained using

A
multimeter
B
voltmeter
C
voltameter
D
potentiometer

Question 63Single Answer

A person, with outstretched arms, is spinning on a rotating stool. He suddenly brings his arms down to his sides. Which the following is true about his kinetic energy K and angular momentum L?

A
Both K and L increase
B
Both K and L remain unchanged
C
K remains constant, L increases
D
K increases but L remains constant

Question 64Single Answer

Which of the following is not a thermodynamic coordinate?

A
Gas constant (R)
B
Pressure (p)
C
Volume (V)
D
Temperature (T)

Question 65Single Answer

An antenna uses electromagnetic waves of frequency 5 MHz . For proper working, the size of the antenna should be

A
300 m
B
3 km
C
15 m
D
15 km

Question 66Single Answer

The amount of energy released when one microgram of matter is annihilated is

A
25 kWh
B
9 x 10¹⁰ kWh
C
3 x 10¹⁰ kWh
D
0.5 x 10⁵ kWh

Question 67Single Answer

The number of significant figures in the numbers 4.8000 x 10⁴ 48000.50 are respectively

A
5 and 6
B
5 and 7
C
2 and 7
D
2 and 6

Question 68Single Answer

β-decay means emission of electron from

A
innermost electron orbit
B
a stable nucleus
C
outermost electron orbit
D
radioactive nucleus

Question 69Single Answer

An electric heater rated 220 V and 550 W is connected to AC mains. The current drawn by it is

A
0.8 A
B
2.5 A
C
0.4 A
D
1.25 A

Question 70Single Answer

A string is wound round the rim of a mounted flywheel of mass 20 kg and radius 20 cm. A steady pull of 25 N is applied on the cord. Neglecting friction and mass of the string, the angular acceleration of the wheel is

A
50 s^-2
B
25 s^-2
C
12.5 s^-2
D
6.25 s^-2

Question 71Single Answer

A billiards player hits a stationary ball by an identical ball to pocker the target ball in a corner pocket that is at an angle of 35^o with respect to the direction of motion of the first ball. Assuming the collision as elastic and that frictional and rotational motions are not important, the angle made by the target ball with respect to the imcoming ball is

A
35^o
B
50^o
C
55^o
D
60^o

Question 72Single Answer

A body of mass 0.05 kg is observed to fall with an acceleration of 9.5 ms^-2. The opposing force of air on the body is (g = 9.8 ms^-2)

A
0.015 N
B
0.15 N
C
0.030 N
D
zero

Question 73Single Answer

The colloidal solution in which both the dispersed phase and dispersion medium are liquids are called

A
emulsions
B
gels
C
foams
D
liquid crystals

Question 74Single Answer

In fog, photographs of the objects taken with infrared radiations are more clear than those obtained during visible light because

A
I-R radiation has lesser wavelength than visible radiation
B
scattering of I-R light is more the object is less
C
the intensity of I-R light is more the object is less
D
scattering of I–R light is less than visible light

Question 75Single Answer

Three concurrent co-planar forces 1 N, 2 N and 3 N acting along different directions on a body

A
can keep the body in equilibrium if 1 N and 3 N act at right angle
B
can keep the body in equilibrium if 1 N and 2 N act at right angle
C
cannot keep the body in equilibrium
D
can keep the body in equilibrium in 1 N and 3 N act at an acute angle

Question 76Single Answer

Sound waves transfer

A
only energy not momentum
B
energy
C
momentum
D
both (a) and (b)

Question 77Single Answer

G P Thomson experimentally confirmed the existence of matter waves by the phenomena

A
diffraction
B
refraction
C
polarisation
D
scattering

Question 78Single Answer

The resistance of a wire at 300 K is found to be 0.3 Ω. If the temperature coefficient of resistance of wire is 1.5 x 10^-3 K^-1, the temperature at which the resistance becomes 0.6 Ω is

A
720 K
B
345 K
C
993 K
D
690 K

Question 79Single Answer

Two luminous points sources separated by a certain distance are at 10 km from an observer. If the aperture of his eye is 2.5 x 10^-3 m and the wavelength of light used is 500 nm the distance of separation between the point sources just seen to be resolved is

A
12.2 m
B
24.2 m
C
2.44 m
D
1.22 m

Question 80Single Answer

A door 1.6 m wide requires a force of N to be applied at the free end to open or close it. The force that is required at a point 0.4 m distance from the hinges for opening or closing the door is

A
1.2 N
B
3.6 N
C
2.4 N
D
4 N

Question 81Single Answer

0.1 m³ of water at 80^o C. The final temperature of the mixture is

A
65^oC
B
70^oC
C
60^oC
D
75^oC

Question 82Single Answer

The spectral series of the hydrogen atom that lies in the visible region of the electromagnetic spectrum

A
Paschen
B
Balmer
C
Lyman
D
Brackett

Question 83Single Answer

A resistor and a capacitor are connected inseries with an AC source. If the potential drop across the capacitor is 5 V and that across resistor is 12 V, then applied voltage is

A
13 V
B
17 V
C
5 V
D
12 V

Question 84Single Answer

The amount of heat energy radiated by a metal at temperature T is E. When the temperature is increased to 3T, energy radiated is

A
8 1E
B
9 E
C
3 E
D
27 E

Question 85Single Answer

A man, of mass 60 kg, is riding in a lift. The weights of the man, when the lift is accelerating upwards and down wards at 2m/s²are respectively (Taking g=2m/s²)

A
720 N and 480 N
B
480 N and 720 N
C
600 N and 800 N
D
None of these

Question 86Single Answer

A galvanometer of resistance 240 Ω allows only 4% of the main current after connecting a shunt resistance. The value of the shunt resistance is

A
10 Ω
B
20 Ω
C
8 Ω
D
5 Ω

Question 87Single Answer

The phenomena in which proton flips is

A
nuclear magnetic resonance
B
lasers
C
radioactivity
D
nuclear fusion

Question 88Single Answer

According to the quark model, it is possible to build all the hadrons using

A
2 quarks and 3 antiquarks
B
1 quarks and 2 antiquarks
C
3 quarks and 3 antiquarks
D
2 quarks and 2 antiquarks

Question 89Single Answer

The surface temperature of the stars is determined using

A
Planck’s law
B
Wien’s displacement law
C
Rayleigh-Jeans law
D
Kirchhoff’s law

Question 90Single Answer

A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side of the principal axis, the intensity of light

A
first decreases and then increases
B
continuously increases
C
continuously decreases
D
first increases and then decreases

Question 91Single Answer

Continuous emission spectrum is produced by

A
incandescent electric lamp
B
mercury vapour lamp
C
sodium vapour lamp
D
polyatomic substances

Question 92Single Answer

A ray of light is incident on a plane mirror at an angle of 60⁰. The angle of deviation produced by the mirror is

A
120⁰
B
30⁰
C
60⁰
D
90⁰

Question 93Single Answer

The electric potential at any point x,y,z in metres is given by V = 3x². The electric field at point (2,0,1) is

A
12 Vm^-1
B
-6 Vm^-1
C
6 Vm^-1
D
-12 Vm^-1

Question 94Single Answer

Young’s double. Slit experiment gives interference fringes of width 0.3 mm. A thin glass plate made of material of refractive index 1.5 is kept in the path of light from one of the slits, then the fringe width becomes

A
zero
B
0.3 mm
C
0.45 mm
D
0.15 mm

Question 95Single Answer

The magnetic dipole moment of a current loop is independent of

A
magnetic field in which it is lying
B
number of turns
C
area of the loop
D
current in the loop

Question 96Single Answer

2 g of a radioactive sample having half-life of 15 days was synthesised on 1^st Jan 2009. The amount (including both the days) is

A
0 g
B
0.125 g
C
1 g
D
0.5 g

Question 97Single Answer

The ratios of the distance traversed, in successive intervals of time by a body, falling from rest, are

A
1 : 3 : 5 : 7 : 9 …………
B
2 : 4 : 6 : 8 : 10 ……………….
C
1 : 4 : 7 :10 : 13 …………
D
None of the above

Question 98Single Answer

A source having frequency of 240 Hz is moving towards on observer with a speed of 20 m/s. when the observer is moving towards the source with a velocity of 20m/s. then apparent frequency heard by the observer, if velocity of sound is 330m/s, will be:

A
268 Hz
B
271 Hz
C
368 Hz
D
250 Hz

Question 99Single Answer

Choose the incorrect statement out of the following.

A
Every measurement by any measuring
B
Every calculated physical quantity that is based on measured values has some error
C
A measurement can have more accuracy but less precision and vice-versa
D
The percentage error is different from relative error

Question 100Single Answer

If E,M,L and G denote energy, mass, angular momentum and gravitational constant respectively then the quantity ( E²L²/M⁵G²) has the dimensions of

A
angle
B
length
C
mass
D
None of these

Question 101Single 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 102Single Answer

Electron volt is a unit of

A
potential difference
B
charge
C
energy
D
capacity

Question 103Single Answer

Dimensions of impulse are

A
[MLT ^–1]
B
[MLT²]
C
[MT^–2]
D
[ML^–1T^–3]

Question 104Single Answer

Potential is measured in

A
joule/coulomb
B
watt/coulomb
C
newton–second
D
None of these

Question 105Single Answer

One Nanometer is equal to

A
10^–9m
B
10^–6m
C
10^–10m
D
10^–3m

Question 106Single Answer

Maxwell is the unit of

A
magnetic susceptibility
B
intensity of Magnetisation
C
magnetic Flux
D
magnetic Permeability

Question 107Single Answer

Which of the following is derived physical quantity ?

A
Mass
B
Velocity
C
Length
D
Time

Question 108Single Answer

What are the units of magnetic permeability ?

A
Wb A^–1 m^–1
B
Wb^–1 Am
C
Wb A m^–1
D
Wb A^–1 m

Question 109Single Answer

The dimensions of pressure gradient are

A
[ML^–2 T^–2]
B
[ML^–2 T^–1]
C
[ML^–1 T^–1]
D
[ML^–1 T^–2]

Question 110Single Answer

The dimensions of Rydberg's constant are

A
[M⁰L^–1T]
B
[MLT^–1]
C
[M⁰L^–1T⁰]
D
[ML⁰T²]

Question 111Single Answer

'Farad' is the unit of

A
resistance
B
conductance
C
capacitance
D
inductance

Question 112Single Answer

S.I. unit of surface tension is

A
degree/cm
B
N/m
C
N/m²
D
Nm

Question 113Single 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 114Single 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 115Single Answer

The symbol of SI unit of inductance is H. It stands for

A
Holm
B
Halogen
C
Henry
D
Hertz

Question 116Single 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 117Single Answer

Which one of the following is not a dimension less quantity ?

A
Strain
B
Relative density
C
Frequency
D
Angle

Question 118Single Answer

The dimensions of universal gas constant are

A
[L² M¹ T^–2 K^–1]
B
[L¹ M² T^–2 K^–1]
C
[L¹ M¹ T^–2 K^–1]
D
[L² M² T^–2 K^–1]

Question 119Single Answer

The dimensions of magnetic moment are

A
[L²A¹]
B
[L²A^–1]
C
[L²/A³]
D
[LA²]

Question 120Single Answer

The dimensions of Wien's constant are

A
[ML⁰TK]
B
[M⁰LT⁰K]
C
[M⁰L⁰TK]
D
[MLTK]

Question 121Single Answer

The dimensional formula of wave number is

A
[M⁰L⁰T^–1]
B
[M⁰L^–1T⁰]
C
[M^–1 L^–1 T⁰]
D
[M⁰ L⁰ T⁰]

Question 122Single Answer

The dimensional of Hubble ‘s wave number is

A
[T^–1]
B
[M⁰L⁰T^–2]
C
[MLT⁴]
D
[MT^–1]

Question 123Single Answer

The dimensions of solar constant is

A
[M⁰L⁰T⁰]
B
[MLT^–2]
C
[ML²T^–2]
D
MT^–3

Question 124Single Answer

The dimensional formula for entropy is

A
[MLT^–2K¹]
B
[ML² T^-2]
C
[ML²T^–2K^–1]
D
[ML²T^–2K]

Question 125Single Answer

Dimension of specific heat are

A
[ML² T^–2 K]
B
[ML² T^–2 K^–1]
C
[ML²T²K^–1]
D
[L²T^–2K^–2]

Question 126Single Answer

The physical quantity which has the dimensional formula [M¹T^–3] is

A
surface tension
B
solar constant
C
density
D
compressibility

Question 127Single Answer

Which one of the following elements is used as a timekeeper in atomic clocks ?

A
Potassium
B
Caesium
C
Calcium
D
Magnesium

Question 128Single Answer

Which one of the following is the value of one nanometer ?

A
10^–7 cm
B
10^–6 cm
C
10^–4 cm
D
10^–3 cm

Question 129Single Answer

What is the unit of pressure ?

A
Newton/sq. meter
B
Newton–meter
C
Newton
D
Newton/meter

Question 130Single Answer

The unit of pressure is

A
kg/cm²
B
kg/cm
C
kg/mm
D
kg/cm³

Question 131Single Answer

Which one of the following quantities doe not have unit ?

A
Stress
B
Force
C
Strain
D
Pressure

Question 132Single Answer

Dimensional formula for thermal conductivity is here K denotes the temperature:

A
MLT^–2K
B
MLT^–2K^–2
C
MLT^–3K
D
MLT^–3K^–1

Question 133Single Answer

Which of the following is the unit of molar gas constant ?

A
JK^–1 mol^–1
B
Joule
C
JK^–1
D
J mol^–1

Question 134Single Answer

Density of liquid is 16.8 g cm^–3. Its value in the International System of Units is

A
16.8 kgm^–3
B
168 kgm^–3
C
1680 kgm^–3
D
16800 kgm^–3

Question 135Single Answer

The dimensional formula of couple is

A
[ML² T^–2]
B
[MLT²]
C
[ML^–1T^–3]
D
[ML^–2T^–2]

Question 136Single 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 137Single 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 138Single 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 139Single Answer

Which of the following is the most accurate ?

A
200.0m
B
20 × 10¹ m
C
2×10²m
D
data is inadequate

Question 140Single Answer

The area of a square is 5.29 cm². The area of 7 such square taking into account the significant figures is:

A
37cm²
B
37.030 cm²
C
37.03 cm²
D
37.0 cm²

Question 141Single Answer

The SI unit of coeffient of mutual inductance of a coil is

A
henry
B
volt
C
farad
D
weber

Question 142Single Answer

The S.I. unit of pole strength is

A
Am²
B
Am
C
Am^–1
D
Am^–2

Question 143Single Answer

Which is dimensionless ?

A
Force/acceleration
B
Velocity/accerleration
C
Volume/area
D
Energy/work

Question 144Single Answer

The expression [ML^–1T^–2] does not represent

A
pressure
B
power
C
Stress
D
Young's modulus

Question 145Single Answer

The dimensional formul of current density is

A
[M⁰L^–2T^–1Q]
B
[M⁰L²T¹Q^–1]
C
[MLT^–1Q]
D
[ML^–2T^–1Q²]

Question 146Single Answer

Match the List – I with List – II
List - I                  List - II
(Units)        (Physical quantity)
A. Watt                 1. Electric charge
B. Tesla               2. Power
C. Coulomb       3. Luminous intensity
D. Candela        4. Magnetic field
Select the correct answer from the codes given below :

A
A B C D
1 4 1 3
B
1 2 3 4
C
1 2 4 3
D
2 4 3 1

Question 147Single Answer

Match the List – I with List – II
List - I                            List - II
(Physical quantity)    (Units)
A. Power                    1. kg ms^–1
B. Energy                   2. kg m²s^–1
C. Momentum          3. Nm^–2
D. Pressure              4. kW
                                    5. kWh
Select the correct answer from the codes given below :

A
A B C D
4 5 1 3
B
4 5 1 2
C
5 4 1 2
D
5 4 2 3

Question 148Single 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 149Single Answer

Match the List – I with List – II
List - I                                   List - II
(Physical quantitiy)           (Units)
A. Density                         1. [MLT^–2]
B. Force                            2. [ML^–3]
C. Energy                         3. [MLT^–1]
D. Momentum                 4. [ML2T^–2]
Select the correct answer from the codes given below :

A
A B C D
3 2 4 1
B
1 2 3 4
C
2 1 4 3
D
3 2 1 4

Question 150Single Answer

Match the List – I with List – II
List - I                              List - II
(Physical quanitity)      (Units)
A. Solid angle            1. pascal
B. Impulse                  2. Steradian
C. Viscosity                3. Newton–second
D. Pressure               4. Pascal–second
Select the correct answer from the codes given below :

A
A B C D
2 4 3 1
B
2 3 4 1
C
1 4 3 2
D
1 3 4 2

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