Calculate the energy of a photon of electromagnetic radiation whose frequency is 2.81×1014 s?1

Question

asked Jun 14, 2019 151k views

1 Answer

ArunGJ · Answer 1 · 2019-06-17T21:55:49+0000

Answer : The energy of a photon is
.

Solution : Given,

Frequency of a photon =
2.81* 10^(14)s^-

Planck' constant =
6.626* 10^(-34)Js

Formula used :

$E=h\\u$

where,

E = Energy of a photon

h = Planck's constant

$\\u$ = Frequency of a photon

Now put all the given values in above formula, we get

E=(6.626* 10^(-34)Js)* (2.81* 10^(14)s^-)
=18.619* 10^(-20)J

Thus, the energy of a photon is
.