Question

The frequency of vibration of a rod is $200Hz$. If the velocity of sound in air is $340m/s$, the wave length of the sound produced is

• A. $1.7m$
• B. $6.8m$
• C. $3.4m$
• D. $13.6m$

Answer 1

The correct option is A $1.7m$

$V=f\lambda$ where $V=$ velocity, $\lambda$ = wavelength and $f=$ frequency

$\lambda =\frac{V}{f}$$=\frac{340}{200}$

$\lambda =1.7m$