Question

A vibrating body vibrates 20 times in 2 seconds. Will the sound produced by the vibrating body audible to you? Justify your answer.        ​

Answer 1

Answer:

i think yes cuz 20 × 2 = 40 so its is not below 20 hz its not an infrasonic sound. So we can hear it. i think i dont know surely cuz i newly learnt about this in sound