Question

If the distance between two consecutive crests of a sound wave is $L$, then its wavelength is given by :

• A. $L/2$
• B. $2L$
• C. $4L$
• D. $L$

Answer 1

The correct option is D $L$

The wavelength of a sound wave is the distance between two consecutive crests or two consecutive troughs.

Here it is given that the distance between the two consecutive crests of a sound wave is $L$. So, the wavelength is also $L$.