Question

A source of wave produces 20 chris and 22 in 0.2 seconds the distance between the crest and net through is 50 cm find time period of the wave

Answer 1

Solution :

Since the sound wave produces 20 crests in 0.2 second, the density of the medium at a place becomes maximum 20 times in 0.2 second. The number of times it becomes maximum in 1 second is



So, the frequency is 100 times /second or 100 Hz.