Question

A wave has a velocity of 300 m/s and a wavelength of 3 m, what is the frequency of wave?A. 100 HzB. 300 HzC. 78 HzD. 50 Hz

Answer 1

ANSWER

A. 100 Hz

EXPLANATION

Given:

• The velocity of the wave, v = 300 m/s

,

• The wavelength, λ = 3 m

Find:

• The wave's frequency, f

The frequency of a wave with a wavelength λ and a velocity v is,

$f=\frac{v}{\lambda}$

Replace the known values and solve,

$f=\frac{300m/s}{3m}=100Hz$

Hence, the frequency of the wave is 100 Hz.