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

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You use either the formula

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**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.

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