Question # 1

The damping depends upon the

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amplitude

sharpness

both of them

none of them

transverse wave motion is possible in:

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Air

A mixture of NH₃and O₂

Strings

All of these

In a resonance situation the amplitude of the motion may become extra ordinarily large, if

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the driving force is large

the driving force is zero

the driving force may be feeble

all of them

While describing the motion of a simple pendulum, the frictional effects are

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taken into account

completely ignored

partially ignored

none of them

The waves in which the particles of the medium are displaced in a direction perpendicular to the direction of propagation of waves are known as

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longitudinal waves

transverse waves

non-mechanical waves

none of them

Crests and troughs are formed in:

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Longitudinal waves

Transverse waves

Both of these

None of these

A wave, which transfer energy by moving away from the source of disturbance is called a

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progressive wave

travelling wave

both of them

none of them

In transverse waves, the individual particles of the medium move:

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In circles

Perpendicular to the direction of level

Parallel to the direction of level

None of these

Fidelity refers to

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Reproduction of original sound

Reproduction of original image

Reproduction of music

Reproduction of a CD from original copy

Which one of the following is an example of resonance

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swing

tuning a radio

microwave oven

all of them

If we increase the length of a simple pendulum four times, its time period will become

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2 times

3 times

4 times

6 times

If the external driving force is periodic with a period compareable to the natural period of the oscillator, then we get

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diffraction

beat

interference

resonance

The resonance will be sharp, if the amplitude decreases rapidly at a frequency

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equal to the resonant frequency

slight different from the resonant frequency

greatly different from the resonant frequency

any one of them

Mechanical waves on the surface of a liquid are

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Transverse

Longitudinal

Torsional

both transverse and longitudinal

Time period of simple pendulum is independent of

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length

mass

acceleration due to gravity

none of them

As the bob of the pendulum moves to and fro which of the force is experienced by the bob

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its weight

tension in the string

viscous drag force by air

all of them

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