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Q.

Is it true that the loudness of sound depends on amplitude?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
The amplitude of vibration determines the loudness of a vibrating object's sound. A soft sound is produced when we strike a drum softly. The intensity of sound decreases as the distance from the source increases, and it increases as the amplitude of vibration increases. The amplitude is proportional to the loudness squared. Thus, increasing the amplitude by three times increases the loudness by nine times.
 
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