Physics, asked by prachi12782, 4 months ago

sound is produced when body undergoes to and fro movement. however, no sound is produced when a person waves his/ her hand. why?

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Answers

Answered by ukthapak

Explanation:

thats because the minimum to and fro motion needed is 20 vibration per second to hear sound. human hand cannot wave 20 times in a second, so

Answered by Lolit007

Answer:

Sound is produced if a body striking another body acquires enough frequency. But a waving hand does not have enough frequency, that we may hear. Humans have a limited range of hearing. We can't hear over a certain frequency or even with less frequency.

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