# How do you calculate the energy of a photon of electromagnetic radiation?

##### 1 Answer

You use either the formula

#### Explanation:

**EXAMPLE 1**

Calculate the energy of a photon of radiation whose frequency is

**Solution 1**

The energy is

**EXAMPLE 2**

Calculate the energy of a photon of radiation that has a wavelength of 3.3 µm.

**Solution 2**

Here's a video on how to find the energy of a photon with a given wavelength.