Question

Three solid waves of equal amplitude have frequencies (n-1), n, (n+1) .They superimpose to give beats .the number of beats per sec will be

Answer 1

Answer:

Beat produced between(v-1) and v is 1. Beat produced between v and v+1 is 1. Beat produced between(v-1) and (v+1) is between(v-1) and (v+1) is 2

∴ No of beats produced per second will be 2