Question

A sound wave causes the density of air at a place to oscillate 1200 times in 2 minutes. Find the time peroid and frequency of the wave

Plz answer fast

Answer 1

Answer:

1200 oscillation in 120 sec ( 2 min), so number of oscillation in 1 sec will be 1200/120 = 10 . so frequency will be 10 htz.. so time period = 1/ frequency .. so time period = 1/ 10 = 0.1 sec..