| 1 |
If a given spring of spring constant K is cut into two identical segments, the spring constant of each segment is:
|
A. K/2
B. 2 K
C. 4 K
D. None of these
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| 2 |
A curie represents a very strong source of
|
A. α-particle
B. β-particle
C. γ-particle
D. none of these
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| 3 |
How much force is required to slide one layer of the liquid over the other layer is measured by
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A. friction
B. density
C. viscosity
D. resistivity
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| 4 |
Glass and high carbon steel are the examples of
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A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
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| 5 |
The mechanics, which deals with the objects moving with velocities approaching that of light is called
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A. Relativistic mechanics
B. Wave mechanics
C. Quantum mechanics
D. Statics
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| 6 |
Boyle's law is applicable in
|
A. Isochoric process
B. Isothermal process
C. Isobaric process
D. Isotonic process
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| 7 |
The quantity F x t is called as
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A. momentum
B. velocity
C. acceleration
D. impulse
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| 8 |
Phenomenon of radioactivity is due to disintegration of
|
A. nucleus
B. neutron
C. proton
D. molecule
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| 9 |
Which one of the following is the unit of electric field intensity
|
A. JC-1
B. Vm-1
C. Cm-1
D. CJ-1
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| 10 |
If the slope of the velocity-time graph increases at constant rate with time, then the body is said to have
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A. uniform deceleration
B. uniform negative acceleration
C. average acceleration
D. uniform positive acceleration
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| 11 |
Centripetal acceleration is also called _______ acceleration:
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A. Tangential
B. Radial
C. Angular
D. None of them
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| 12 |
F = I(L x B) is a
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A. vector
B. scalar
C. unit vector
D. none of these
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| 13 |
If the distance between two charges is doubled, the force between them will become:
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A. Double
B. Half
C. Three times
D. One fourth
|
| 14 |
Graph of Black body radiation is example of
|
A. Band spectra
B. Continuo's spectra
C. Line spectra
D. All
|
| 15 |
The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called
|
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
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| 16 |
INTELSAT operates at frequencies 4, 6, 11, 14 having unit of:
|
A. KHz
B. MHz
C. GHz
D. BHz
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| 17 |
A mass of a liquid of density is mixed with an equal mass of another liquid of density 3. The density of the liquid mixture is.
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A. 1
B. 3/2 p
C. 2
D. 4
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| 18 |
If the velocity of the body decreases non-uniformly then the slope of the velocity-time graph will have
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A. different values
B. same values
C. zero valves
D. constant valves
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| 19 |
The fractional change in resistance per kelvin is known as
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A. temperature coefficient
B. resistance coefficient
C. super temperature
D. critical temperature
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| 20 |
The efficiency of petrol engine is usually not more than 25% to 30% because of
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A. friction
B. heat losses
C. both of them
D. none of them
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| 21 |
When each particle of the fluid moves along a smoth path, this path is known as
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A. straight path
B. smooth path
C. haphazard path
D. steamline
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| 22 |
In the forward biases situation, the current flowing across the p-n junction is a few:
|
A. amperes
B. Milli amperes
C. Micro amperes
D. Pico amperes
|
| 23 |
When a fluid is in motion, its flow can be considered as
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A. turbulent
B. streamline
C. either or them
D. neither of them
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| 24 |
The motion in a plane is the motion in
|
A. one dimension
B. two dimension
C. three dimension
D. four dimension
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| 25 |
To sources are said to be coherent if they have:
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A. Same amplitude
B. Same wavelength
C. Definite phase relation with each other
D. None of them
|
| 26 |
Density is defined as:
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A. Mass per volume
B. Volume per mass
C. Mass X volume
D. Mass per length
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| 27 |
The force experienced by an electron projected in a magnetic field B with a velocity V is given by
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A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
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| 28 |
When two waves with same frequency and constant phase difference phase difference interfere
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A. There is a gain of energy
B. There is a loss of energy
C. The energy is redistributed and the distribution changes with time
D. The energy is redistributed and the distribution remains constant with time
|
| 29 |
Ethanol (alcohol) as a type of:
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A. Electric fuel
B. Bio fuel
C. Nuclear fuel
D. None of these
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| 30 |
G.P. Thomson observer experimentally that electrons and neutrons possess
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A. particle-like properties
B. wave-like properties
C. neither particle nor wave like properties
D. none of these
|