Question # 1

Energy is not carried by

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Transverse progressive waves

Longitudinal vibration

Stationary waves

Electromagnetic

If the displacement of a body executing S.H.M is plotted against time, then the curve is known as

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frequency of S.H.M

period of S.H.M

wave form

none of them

There is no net transfer of energy by particle of medium in

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Longitudinal wave

Transverse wave

Progressive wave

Stationary wave

The frequency of free vibrations is known as

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free frequency

forced frequency

natural frequency

un-natural frequency

In the production of beats by 2 waves of same amplitude and nearly same frequency, the maximum intensity to each of the constituent waves is

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Same

2 times

4 times

8 times

The characteristic of a body executing S.H.M is that its acceleration is

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inversely proportional to displacement

directly proportional to displacement

independent of displacement

equal to zero

A traveling wave has a shape of:

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Square wave

Sine wave

Parabola

hyperbola

When the particles of the medium vibrate about their mean position, along the direction of the motion of waves, then the waves are called:

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Longitudinal waves

Transverse waves

Water waves

Complex waves

Velocity of sound in vacuum (in m/s) is

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330

1000

156

0

Time period of a simple pendulum depends upon the

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length of the pendulum

acceleration due to gravity

none of them

both of them

The weight 'mg' of the bob is resolved into

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one component

two components

three components

four components

To hear a clear echo, the reflecting surface must be at a minimum distance of

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10 m

16.5 m

33 m

66 m

The wave form of S.H.M will be

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square wave

sine wave

rectified wave

saw-tooth wave

Which of the following changes at an antinode in a stationary wave?

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Density only

Pressure only

Both pressure and density

Neither pressure nor density

The distance covered by the wave in one second is:

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Wave number

Wave length

Frequency

Wave speed

The ratio of velocity of sound in air at 4 atm pressure and that at 1 atm pressure would be

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1 : 2

4 : 1

1 : 4

2 : 1

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