Question

Three sound waves of equal amplitudes have frequencies (v – 1), v, (v + 1). They superimpose to produce beats. The maximum number of beats produced per second will be:

• A. $v$
• B. $\frac{v}{2}$
• C. $2$
• D. $1$

Answer 1

The correct option is C $2$

Maximum number of beats $=u+1–(u–1)$