Question

A wave has a period of 2 seconds and a wavelength of 4 meters. Calculate its frequency and speed. Note: Recall that the frequency of a wave equals 1/period & the period of a wave equals 1/frequency.

Answer 1

frequency = 0.5 Hz and speed = 2 m/s

Step-by-step explanation:

Given that,

The period of a wave, T = 2 s

Wavelength,
`\lambda=4\ m`

If f be the frequency. So,

f = 1/T

`f=(1)/(2)\\\\f=0.5\ Hz`

Speed of a wave is given by :

`v=f\lambda\\\\v=0.5* 4\\\\v=2\ m/s`

So, the frequency of the wave is 0.5 Hz and speed is 2 m/s.