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View Full Version : How to find the energy of a photon?


jddavis
Apr 17, 2014, 01:30 PM
Find the energy of a photon whose frequency is 5 x 10^12 Hz

CWH68
Apr 17, 2014, 02:00 PM
E = hv where h= Planck's constant = 6.626 x 10-²7 erg sec, and v is the frequency.

So the energy is (6.626 * 10^-27 erg sec)(5 * 10^12 sec^-1) = 3.313*10^-14 erg.