Which of the following holds true when a big metal dish falls from a sufficient height on a hard surface?

A loud noise is followed after it falls.

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A feeble noise is followed after it.

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No noise is generated.

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The particles of metal dish vibrates.

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Solution

The correct options are
A A loud noise is followed after it falls.
D The particles of metal dish vibrates.
When a metal dish is dropped from a height on a hard surface, a loud sound is generated, because of the vibrations caused within the particles of the metal dish. The vibration caused would vary if the surface had not been hard, generating feeble or even no sound.

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Similar questions

State whether the following statements are true or false:

(a) Sound cannot travel in vacuum.

(b) The number of oscillations per second of a vibrating object is called its time-period.

(d) The lower the frequency of vibration, the higher is the pitch.

(e) If the amplitude of vibrations is doubled, the loudness of sound also gets doubled.

(f) When the amplitude of vibrations is halved, the loudness of sound becomes one-fourth.

(g) Unwanted or unpleasant sound is termed as music.

(h) Noise pollution may cause partial hearing impairment.

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