Question # 1

In simple pendulum motion, restoring force is provided by:

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Air resistance

Tension in the string

Inertia

Weight of the body

The distance between two consecutive compressions or rarefactions in longitudinal waves is called:

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Amplitude

Wavelength

Half wavelength

1/4 wavelength

Pitch of sound depends upon:

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Frequency

Amplitude

Intensity

Time period

The waves which travel in straight line through space and have strong signals are called:

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Micro waves

Mechanical waves

Light waves

Magnet waves

Which is an example of a longitudinal wave?

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Sound wave

Light wave

Radio wave

Water wave

Old people can not hear sound above then _____ Hz

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1000

15000

20000

10000

The speed of sound was accurately measured in:

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1736

1737

1738

1739

The disturbance travelling in a medium is called:

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Wave motion

Simple harmonic motion

Motion

both a and b

Astronauts is space need to communicate with each other by radio links because:

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Sound waves travel very slowly in space.

Sound waves travel very fast in speace

Sound waves cannot travel in space

Sound waves have low frequency in space

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