Question # 1

The SI unit of angular displacement is.

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Degree

Revolution

Radian

Rotation

the work done in isochoric process is.

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Constant

Variable

Zero

Depend upon condition

The maximum velocity necessary to put a satellite into orbit is

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7.1 kms-1

7.3 kms-1

7.9 kms-1

8,9 kms-1

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

The efficiency of diesel engine is about

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25 % to 30%

35% to 40%

40% to 50%

50% to 60%

The diver spins faster when moment of inertia becomes.

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smaller

Greater

Constant

Zero

The area between velocity time graph and the time axis is numerically equal to.

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?Speed of object

Distance covered by the object

Average velocity of the object

Acceleration of the object.

Light year is the unit of

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Distance

Time

Light

Velocity

In reversible process the entropy of system.

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Remain constant

Decrease

Increase

Becomes zero

Multimode step index fiber is useful for.

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Long distance

Sort distance

Very long distance

Infinite distance

The branch of Physics wich deals with velocities approaches the velocity of light is called

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Quantum Physics

Relati vistics Mechanics

Wave Mechanics

None of these

The branch of physics which deals with the study of production, propagation and properties fo sound waes is called.

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Heat and thermodynamcis

Optics

Acoustics

Mechanics

Han discovered uranium fissionin

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1940

1938

1935

1939

The process of confining the beam of light to vibrate in one plane is called.

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Interference

Diffraction

Polarization

Total internal refraction

An ideal heat engine can only be 100% efficient if its cold temperature reservoir is at.

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0 K

0 ^oC

100 K

100 ^oC

For a gas obeying Boyle's Law, if the pressure is doubled, the volume becomes.

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Double

Three fold

One half

Remains the same

The motion of a simple pendulum is the example of

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Vibratory motion

Rotatory motion

Periodic motion

Both a and c

The unit of co efficient of viscosity in S.I system

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Kg -1 ms-1

Kg m-1 s-1

kg -1 m-1

Kg ms-1

The efficiency of diesel engine is about

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25% to 30%

35% to 40%

40% to 50%

50% to 60%

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When the car moves with an increasing acceleration then its velocity time graph is always

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Constant

Variable

A straight line

A curve

In branch of physics which deals with the nuclear particls such as neurtons, protons adn nuclear structur is called

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Nuclear Physics

Solid state Physics

Particle Physics

Plasma physics

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