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Wavelength of Photon Released from Hydrogen Atom

APPH12-Z33HJB

What is the wavelength of a photon released from a hydrogen atom when an electron drops from the $n=5$ state to the $n=2$ state?

A

$2.856\text{ nm}$

B

$434\text{ nm}$

C

$465\text{ nm}$

D

$228\text{ nm}$