Question

What is the wavelength of a 3 x 1012 Hz infrared wave?​

Answer 1

Answer:

$\lambda=10^{-4}\ m$

Explanation:

Given that, $\lambda=10^{-4}\ m$

The frequency of infrared wave, $f=3\times 10^{12}\ Hz$

We need to find the wavelength of infrared wave. The relation between the frequency and the wavelength is given by :

$c=f\lambda$

where

c is the speed of light

$\lambda=\dfrac{c}{f}\\\\\lambda=\dfrac{3\times 10^8}{3\times 10^{12}}\\\\=0.0001\ m\\\\=10^{-4}\ m$

So, the wavelength of the infrared wave is $10^{-4}\ m$.