Question

A tuning fork vibrates 200 times per second and sends out a compressional wave

that travels with a speed of 340 m/s. Find (a) the period and (b) the wavelength.

Answer 1

Given:

$f=200\:\rm Hz$

$v=340\:\rm m/s$

(a) the period

$$T=\frac{1}{f}=\frac{1}{200}=0.005\:\rm s$$

(b) the wavelength

$$\lambda=\frac{v}{f}=\frac{340}{200}=1.7\:\rm m$$