# How to Determine the Frequency of an Interacting Photon

What is the best and easy way to determine the frequency (in hz) of the interacting photon.

Here are the conditions:

A photon interacts with a ground state electron in a hydrogen atom and is absorbed. The electron is ejected from the atom and exhibits a de Broglie wavelength of 4.548 x 10^10 m.

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#### Solution Preview

Ground state energy of hydrogen atom = 13.6 eV = 2.18 x 10^-18 ...

#### Solution Summary

The solution discusses how to determine the frequency of an interacting photon.

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