Question

A sound wave travels at a speed of 339 m/s . If its wavelength is 1.5 cm , what is the frequency of the wave?

• A. $2600Hz$
• B. $2200Hz$
• C. $2260Hz$
• D. $22600Hz$

Answer 1

Answer: (D)

$22600Hz$

Given speed $\left(V\right)=339m/s$ ; $\lambda =0.0015m;f=?$

Now we know, $V=f\lambda$
$⟹f=\frac{V}{\lambda }=\frac{339}{0.0015}=22600Hz$