Question

Explain the production of beats and Reduce analytical the expression for beat frequency ?

Answer 1

Answer:

Beats is the phenomenon caused by two sound waves of nearly same frequencies and amplitudes travelling in the same direction. Tuning of musical instruments like piano, harmonium etc. ... s1=a cos ω1t and s2=a cos ω2t; where amplitude and phase of the waves are same,but the frequencies are varying.