Question

A wave travels at a speed of 0.3 ms–1 and the frequency of wave is 20 Hz. Find the wavelength.

Answer 1

wavelength of the wave is 1.5 cm.

Explanation:

Given speed of the wave = 0.3 ms–1 and the frequency of wave is 20 Hz.

The relationship between wavelength (λ) , wave velocity (v) and frequency (f) can be gotten from the formula:

λ = v / f

= 0.3 / 20  

= 0.015 m.  

= 1.5 * 10^-2 m

= 1.5 cm

Hence, the wavelength of the wave is 1.5 cm.