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Loudness

How is the so...

Question

How is the sound from a bell become louder?

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Solution

A bell is made of metal and metal has the property of elasticity.
Due to the property of elasticity metal vibrates with more amplitude and allows louder forced vibration in the air which causes higher sound.

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Similar questions

Q. A scientist performed an experiment as shown in the picture here.
Figure

What do you think happened as air was pumped out of the jar and he rang the bell?
(a) The sound became louder.
(b) The sound became fainter first and then louder once all the air was pumped out.
(c) The sound could not be heard anymore.
(d) The sound was the same as before.

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