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    jddavis's Avatar
    jddavis Posts: 1, Reputation: 1
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    #1

    Apr 17, 2014, 01:30 PM
    How to find the energy of a photon?
    Find the energy of a photon whose frequency is 5 x 10^12 Hz
    CWH68's Avatar
    CWH68 Posts: 26, Reputation: 2
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    #2

    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.
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