Question

what is the effect on the pitch of a sound whe the frequency of a vibrating body is doubled

Answer 1

The pitch of a sound is directly proportional to its frequency. Sounds of low frequency are said to have low pitch whereas sounds of high frequency are said to have high pitch.

Frequency doubled pitch is also doubled...
may this helps u...

Answer 2

a)When the amplitude of vibration is large ,the sound produced is loud. b)If the amplitude of vibration is small ,the sound produced is feeble. The loudness of sound is directly proportional to the square of amplitude of vibration. If the amplitude of vibration is doubled ,then the loudness will become 4 times