Question

What would be the wavelength of light that has a frequency of 3 X 10-4 Hz in a vacuum?

Answer 1

Answer:

$\lambda=10^{12}\ m$

Explanation:

Given that,

The frequency of the light, $f=3\times 10^{-4}\ Hz$

We need to find the wavelength of the light.

The relation between frequency, wavelength and the speed of light is given by :

$c=f\lambda\\\\\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3\times 10^{-4}}\\\\\lambda=10^{12}\ m$

So, the wavelength of the light is $10^{12}\ m$.