Question

The distance between a compression and its next rarefaction, in a sound wave of wavelength $\lambda$, will be:

• A. $\frac{\lambda }{2}$
• B. $\frac{\lambda }{4}$
• C. $\frac{\lambda }{8}$
• D. $\frac{\lambda }{16}$

Answer 1

The correct option is A

$\frac{\lambda }{2}$

The distance between two consecutive compressions or rarefactions is called wavelength. It is denoted by symbol $\lambda$. The distance between a compression and the next rarefaction will be half of that distance, i.e. $\frac{\lambda }{2}$.