Question

If an am radio station broadcasts at 995kHz what is the wavelength of this radiation?

A. 6.59 x 10^-28m
B. 3.32 x 10^-3m
C. 1.01 x 10^-6m
D. 302 m

Answer 1

Wavelength is 302 m

Step-by-step explanation:

We have,

The frequency of an AM radio station is 995 kHz.

It is required to find its wavelength.

The relation between the frequency and wavelength in terms of speed is given by :

`c=f\lambda`

c is speed off light. All electromagnetic wave travels with the speed of light.

`\lambda` is wavelength

`\lambda=(c)/(f)\\\\\lambda=(3* 10^8)/(995* 10^3)\\\\\lambda=301.50\ m`

So, the correct option is 302 m.