Question

the sound from butterfly is produced when it vibrates its wings at an average rate of 250 vibration in per second what is the time period of vibration​

Answer 1

explanation:

Frequency equals the number of waves that passes a given point per second or the number of oscillations of a vibrating body per second or number of cycles per second.

In this case, a butterfly vibrates its wings at an average rate of 250  vibrations per second. Therefore, the frequency of the sound is 250 Hz.

Time period of the wave is defined as the reciprocal of the frequency of the wave.

That is, T=f1=2501=0.002 second.

Hence, time period of the sound produced by the butterfly

is 0.002 second.