Question

What is the frequency of a wave that has a speed of 8 m/s and a wavelength of 2.0 m?

Answer 1

F = 8m/s / 2m = 4 Hz
easy as that

Answer 2

Answer:

Frequency of the wave, f = 4 Hz

Explanation:

It is given that,

Speed of the wave, v = 8 m/s

Wavelength of the wave, λ = 2 m

We have to find the frequency of the wave. The relationship between the frequency, wavelength and the speed of the wave is given by :

$v=f\times \lambda$

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

$f=\dfrac{8\ m/s}{2\ m}$

f = 4 Hz or 4 s⁻¹

So, the frequency of the wave is 4 Hz. Hence, the correct option is (c) " 4 Hz".