Question # 1

When a particle is moving along a circular path its projection along the diameter executes

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Linear motion

Vibratory motion

Rotatory motion

SHM

The relation between linear and angular velocity is

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The work done is isochoric process is.

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Constant

Variable

Zero

Depend upon condition

When a body is moving along a circular path, then such a motion is called

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Vibratory motion

Rotatory motion

Linear motion

None of these

The formula of centripetal acceleration is

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The magnitude of A will be

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Zero

A²

1

A

Which of the following is evidence of wave nature of light

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Interference

Diffraction

Polarization

All of these

Salter's duck was invented by

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Newton

Einstein

Prof Salter

Maxwell

The regular or steady flow of fluid is called

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Stream line

Turbulent flow

Average flow

None of these

A collision in which K.E. of the system is not conserved is

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Elastic collision

Inelastic collision

3rd low of motion

None of these

The motion of gas molecules is

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In the same direction

Random

Walls of container

Opposite to each other

The power needed to lift a mass of 5000 g to height of 1 m in 2 secnd is

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2.45 watt

24.5 watt

245 watt

2.45 watt

With increase of temperature, speed of sound.

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Remains constant

Becomes zero

Decreases

Increases

In blue light is used as compare to red light then fringe spacing.

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Increase

Decreases

Remain same

Becomes zero

the louder the sound, the greater will be its.

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Speed

Frequency

Amplitude

Wave length

The measure of hotness or coldness of a substance is.

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Temperature

Heat

Internal energy

Energy

This is used for

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Co-efficient of friction

Co-efficient of expansion

Co-efficient of viscosity

Co-efficient of contraction

The value of angular momentum is maximum when 0 is

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90^o

60^o

75^o

45^o

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