Physics - Sound Wave Question with Solution | TestHub
Statement-1: Beats are formed when two sound waves of slightly different frequencies travel in the same direction and interfere.
Statement-2: For a human ear, the maximum number of beats heard per second is typically around 10-12, beyond which the individual beats cannot be distinguished.
Options:
Answer:
Solution:
Statement-1 is true. Beats are indeed formed due to the interference of two sound waves of slightly different frequencies traveling in the same direction.
Statement-2 is also true. The human ear can distinguish individual beats only if the beat frequency is low, typically up to 10-12 Hz. Beyond this, the sensation becomes that of an average sound with varying intensity, but individual beats are not perceived.
However, Statement-2 describes a physiological limitation of hearing, not the formation mechanism of beats described in Statement-1. Hence, Statement-2 is not a correct explanation for Statement-1.
