Question

The wave length of a radio wave is 1.0m. Find its frequency.

Answer 1

Radio wave are electromagnetic waves and hence they travel with the speed of light.

$v=3\times {10}^8㎧\lambda \left(given\right)=1m$

A we know

$v=f\lambda \therefore f=\frac{v}{\lambda }=\frac{3\times {10}^8}{1}\therefore f=3\times {10}^{8}Hz$