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प्रश्न
If a ringing bicycle bell is held tightly by hand, it stops producing sound. Why?
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उत्तर
This is because when the ringing bell is held tightly with our hand, it stops to vibrate and so do the sound. Hence, sound is produced when an object vibrates.
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संबंधित प्रश्न
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(b) crests and troughs?
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(a) having on fixed shape and no fixed volume?
(b) having a fixed volume but no fixed shape?
(c) having the same composition as that on the moon?
(d) having a fixed shape and a fixed volume?
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