Question

If velocity of sound in air is 340 $m{s}^{-1}$, calculate wavelength when frequency is 256 Hz :

• A. 2.5 m
• B. 2.56 m
• C. 1.33 m
• D. 1.45 m

Answer 1

The correct option is C 1.33 m

Given $v=340m/s$ ; $\lambda =?;f=256Hz$

We know, $v=f\lambda ⟹\lambda =\frac{v}{f}=\frac{340}{256}=1.33m$