Physics - Sound Wave Question with Solution | TestHub

The beat frequency is given by the difference between the frequencies of the two waves.

$n=n_1-n_2$

$n=340-335=5$ Hz

The time interval between two successive maxima is the beat period $T$, which is the reciprocal of the beat frequency.

$T=\frac{1}{n}=\frac{1}{5}=0.2$ s

Answer: 0.2