# How can I calculate the wavelength of electromagnetic radiation?

May 14, 2018

Just a simple equation would do the job well.

#### Explanation:

The wavelength of a wave is given by:

$\lambda = \frac{v}{f}$

where:

• $v$ is the velocity of the wave in meters per second

• $f$ is the frequency of the wave in hertz

In the case of electromagnetic radiation, the energy is spread out at the speed of light, $c$, so the equation becomes:

$\lambda = \frac{c}{f}$

Now, you can apply this equation to some $\text{EM}$ wavelength problems. What is the wavelength of an electromagnetic wave that has a frequency of $1 \setminus \text{Hz}$?