Question # 1

Light year is the unit of

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Distance

Time

Light

Velocity

The dimension of power are

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[ML2T-3]

[ML2T-2]

[MLT-1]

None of these

Physics bases on Newtonian mechanics is called

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astrophysics

Modern Physics

Classical Physics

Meta Physcis

At what speed the momentum and kinetic energy of a body having the same.

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1 ms-1

2 ms-1

4 ms-1

8 ms-1

The system international SI built up from

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Derived Units

Supplementary units

Basic Units

All of these

Cloud formation in atmosphere is an example of.

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Isothermal process

Isochoric process

Adiabatic process

Isobaric process

In transverse waves the particles of medium vibrate

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Along the direction of wave

Opposite to direction of wave

Perpendicular to direction of wave

Slowly

The circumference fo the earth was determined by

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Bohr

A Beruni

Ibn al Haithm

Chadwick

A Carnot engine has an efficiency of 50% when its sink temperature is at 27 ^oC. The temperature of source.

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273^oC

300 ^oC

327 ^oC

373 ^oC

The time rate of change of angular displacements called.

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Linear velocity

Linear speed

Angular velocity

Angular speed

Total confined light is obtained by

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Total internal reflection

Refraction of light

Diffraction

Polarization

Stationary waves are generated on a string of high l, if tension is increased , frequency of vibration will

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Decrease

Unchanged

Half

Increases

Motion of projective is

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One dimensional

Two dimensional

Three dimensional

Four dimensional

When body acquires terminal velocity them its acceleration 'a' becomes.

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a = 0

a = g

a > 0

a < 0

Vectors have

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Numerical value

Directional

Both a and b

None of these

The relation between the speed and hoop can be written as

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2

4

1/2

1/4

The angle between x-axis, y-axis and z-axis is

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45°

60°

75°

90°

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

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