Question

a flute produces 500 waves in how much time when the frequency of sound of flute is 25 hazards

Answer 1

Answer :- 20 sec

Typo mistake in question.  frequency of sound of flute is 25 hertz.

Hertz is number of waves per second.

Frequency of sound of flute is 25 hazards. So it produces 25 waves per second.

So 500 waves will be produced in = 500 / 25 = 20 sec

So, flute produces 500 waves in 20 sec.