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Objective Questions

Latest JCECEB BSc Nursing Entrance Exam Question (Objective Questions), MCQ in English

Subjects : Physics, Chemistry, Biology

Question Bank JCECEB BSc Nursing Entrance Exam - English
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Physics

Question 1Single Answer
In ruby laser, the stimulated emission is due to transition from
  1. A
    metastable state to any lower state
  2. B
    any higher state of lower state
  3. C
    metastable state to ground state
  4. D
    any higher state to ground state
Question 2Single Answer
A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is
  1. A
    uniform throughout the pipe not zero
  2. B
    zero only along the axis of the pipe
  3. C
    zero at any point inside the pipe
  4. D
    maximum at the centre and minimum at the edge
Question 3Single 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
  1. A
    0.45 m    
  2. B
    0.15 m
  3. C
    0.30 m       
  4. D
    0.6 m
Question 4Single Answer
Two sources are said to be coherent if they produce waves
  1. A
    having a constant phase difference
  2. B
    of equal wavelength
  3. C
    of equal speed
  4. D
    having same shape of wavefront
Question 5Single Answer
Three resistors 1 Ω, 2 Ω, 3Ω resistor a 3 V battery is connected. The current through 3 Ω resistor is -
  1. A
    0.75 A     
  2. B
    1 A
  3. C
    2 A         
  4. D
    1.5 A
Question 6Single Answer
In a common emitter amplifier the input signal is applied across
  1. A
    anywhere 
  2. B
    emitter-collector
  3. C
    collector-base
  4. D
    base-emitter
Question 7Single 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
  1. A
    2 and 4
  2. B
    1 only
  3. C
    3 and 4
  4. D
    4 only
Question 8Single 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.
  1. A
    S1,S2 and S4
  2. B
    S2 and S4
  3. C
    S4 only
  4. D
    S3 only
Question 9Single Answer
Ferromagnetic materials used in a transformer must have
  1. A
    low permeability and high hysterisis loss
  2. B
    high permeability and low hysterisis loss
  3. C
    high permeability and high hysterisis loss
  4. D
    low permeability and low hysterisis loss
Question 10Single Answer
According to Newton’s corpuscular theory, the speed of light is
  1. A
    same in all the medium
  2. B
    lesser in rarer medium
  3. C
    lesser in denser medium
  4. D
    independent of the medium
Question 11Single Answer
Temperature can be expressed as derived quantity in terms of
  1. A
    length and mass
  2. B
    mass and time
  3. C
    length, mass and time
  4. D
    None of these
Question 12Single Answer
Electron volt is a unit of
  1. A
    potential difference
  2. B
    charge
  3. C
    energy
  4. D
    capacity
Question 13Single Answer
Dimensions of impulse are
  1. A
    [MLT –1]
  2. B
    [MLT²]
  3. C
    [MT–2]
  4. D
    [ML–1T–3]
Question 14Single Answer
Potential is measured in
  1. A
    joule/coulomb
  2. B
    watt/coulomb
  3. C
    newton–second
  4. D
    None of these
Question 15Single Answer
One Nanometer is equal to
  1. A
    10–9m
  2. B
    10–6m
  3. C
    10–10m
  4. D
    10–3m
Question 16Single Answer
Maxwell is the unit of
  1. A
    magnetic susceptibility
  2. B
    intensity of Magnetisation
  3. C
    magnetic Flux
  4. D
    magnetic Permeability
Question 17Single Answer
Which of the following is derived physical quantity ?
  1. A
    Mass
  2. B
    Velocity
  3. C
    Length
  4. D
    Time
Question 18Single Answer
What are the units of magnetic permeability ?
  1. A
    Wb A–1 m–1
  2. B
    Wb–1 Am
  3. C
    Wb A m–1
  4. D
    Wb A–1 m
Question 19Single Answer
The dimensions of pressure gradient are
  1. A
    [ML–2 T–2]
  2. B
    [ML–2 T–1]
  3. C
    [ML–1 T–1]
  4. D
    [ML–1 T–2]
Question 20Single Answer
The dimensions of Rydberg's constant are
  1. A
    [M0L–1T]
  2. B
    [MLT–1]
  3. C
    [M0 L–1T0]
  4. D
    [ML0 T2]
Question 21Single Answer
'Farad' is the unit of
  1. A
    resistance
  2. B
    conductance
  3. C
    capacitance
  4. D
    inductance
Question 22Single Answer
S.I. unit of surface tension is
  1. A
    degree/cm
  2. B
    N/m
  3. C
    N/m²
  4. D
    Nm
Question 23Single Answer
Which one of the following pairs does not have the same dimension ?
  1. A
    Potential energy and Kinetic energy
  2. B
    Density and specific gravity
  3. C
    Focal length and height
  4. D
    Gravitational force and frictional force
Question 24Single Answer
Which one of the following physical quantity has the same unit as that of pressure ?
  1. A
    Angular momentum
  2. B
    Stress
  3. C
    Strain
  4. D
    Work
Question 25Single Answer
The symbol of SI unit of inductance is H. It stands for
  1. A
    Holm
  2. B
    Halogen
  3. C
    Henry
  4. D
    Hertz
Question 26Single Answer
Light year is a measure of
  1. A
    time
  2. B
    distance
  3. C
    total amount of light falling on the Earth in a year
  4. D
    average intensity of light falling on the Earth in a year
Question 27Single Answer
Which one of the following is not a dimension less quantity ?
  1. A
    Strain
  2. B
    Relative density
  3. C
    Frequency
  4. D
    Angle
Question 28Single Answer
The dimensions of universal gas constant are
  1. A
    [L² M¹ T–2 K–1]
  2. B
    [L¹ M² T–2 K–1]
  3. C
    [L¹ M¹ T–2 K–1]
  4. D
    [L² M² T–2 K–1]
Question 29Single Answer
The dimensions of magnetic moment are
  1. A
    [L²A¹]
  2. B
    [L²A–1]
  3. C
    [L²/A³]
  4. D
    [LA²]
Question 30Single Answer
The dimensions of Wien's constant are
  1. A
    [ML0TK]
  2. B
    [M0LT0K]
  3. C
    [M0L0TK]
  4. D
    [MLTK]
Question 31Single Answer
The dimensional formula of wave number is
  1. A
    [M0L0T–1]
  2. B
    [M0L–1T0]
  3. C
    [M–1 L–1 T0]
  4. D
    [M0 L0 T0]
Question 32Single Answer
The dimensional of Hubble ‘s wave number is
  1. A
    [T–1]
  2. B
    [M0L0T–2]
  3. C
    [MLT4]
  4. D
    [MT–1]
Question 33Single Answer
The dimensions of solar constant is
  1. A
    [M0L0T0]
  2. B
    [MLT–2]
  3. C
    [ML²T–2]
  4. D
    MT–3
Question 34Single Answer
The dimensional formula for entropy is
  1. A
    [MLT–2K¹]
  2. B
    [ML2 T-2]
  3. C
    [ML²T–2K–1]
  4. D
    [ML²T–2K]
Question 35Single Answer
Dimension of specific heat are
  1. A
    [ML² T–2 K]
  2. B
    [ML² T–2 K–1]
  3. C
    [ML²T²K–1]
  4. D
    [L²T–2K–2]
Question 36Single Answer
The physical quantity which has the dimensional formula [M¹T–3] is
  1. A
    surface tension
  2. B
    solar constant
  3. C
    density
  4. D
    compressibility
Question 37Single Answer
Which one of the following elements is used as a timekeeper in atomic clocks ?
  1. A
    Potassium
  2. B
    Caesium
  3. C
    Calcium
  4. D
    Magnesium
Question 38Single Answer
Which one of the following is the value of one nanometer ?
  1. A
    10–7 cm
  2. B
    10–6 cm
  3. C
    10–4 cm
  4. D
    10–3 cm
Question 39Single Answer
What is the unit of pressure ?
  1. A
    Newton/sq. meter
  2. B
    Newton–meter
  3. C
    Newton
  4. D
    Newton/meter
Question 40Single Answer
The unit of pressure is
  1. A
    kg/cm²
  2. B
    kg/cm
  3. C
    kg/mm
  4. D
    kg/cm3
Question 41Single Answer
Which one of the following quantities doe not have unit ?
  1. A
    Stress
  2. B
    Force
  3. C
    Strain
  4. D
    Pressure
Question 42Single Answer
Dimensional formula for thermal conductivity is here K denotes the temperature:
  1. A
    MLT–2K
  2. B
    MLT–2K–2
  3. C
    MLT–3K
  4. D
    MLT–3K–1
Question 43Single Answer
Which of the following is the unit of molar gas constant ?
  1. A
    JK–1 mol–1
  2. B
    Joule
  3. C
    JK–1
  4. D
    J mol–1
Question 44Single Answer
Density of liquid is 16.8 g cm–3. Its value in the International System of Units is
  1. A
    16.8 kgm–3
  2. B
    168 kgm–3
  3. C
    1680 kgm–3
  4. D
    16800 kgm–3
Question 45Single Answer
The dimensional formula of couple is
  1. A
    [ML² T–2]
  2. B
    [MLT²]
  3. C
    [ML–1T–3]
  4. D
    [ML–2T–2]
Question 46Single Answer
Subtract 0.2 J from 7.26 J and express the result with correct number of significant figures.
  1. A
    7.1 J
  2. B
    7.06 J
  3. C
    7.0 J
  4. D
    7 J
Question 47Single Answer
Multiply 107.88 by 0610 and express the result with correct number of significant figures.
  1. A
    65.8068
  2. B
    65.807
  3. C
    65.81
  4. D
    65.8
Question 48Single Answer
When 97.52 is divided by 2.54, the correct result is
  1. A
    38.3937
  2. B
    38.394
  3. C
    38.39
  4. D
    38.4
Question 49Single Answer
Which of the following is the most accurate ?
  1. A
    200.0m
  2. B
    20 × 10¹ m
  3. C
    2×10²m
  4. D
    data is inadequate
Question 50Single Answer
The area of a square is 5.29 cm². The area of 7 such square taking into account the significant figures is:
  1. A
    37cm²
  2. B
    37.030 cm²
  3. C
    37.03 cm²
  4. D
    37.0 cm²
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