Question

(d) We can hear the movement of a
mosquito's wings but we cannot
hear the movement of our hands
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Answer 1

Answer:

Hey mate,here is ur answer

Explanation:

The movement of Mosquito's wing is very fast and having a frequency of 10 khz which lies in the audible range so, we can hear the movement of mosquito wing. The movement of human hand is to slow and having a frequency less than the 1 hz which is not lies in the audible range so we cannot hear the movement of our hands.

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Answer 2

Answer:

hear is your answer hope it will help you mark as brain list