Learn How to Calculate Photon Energy using Planck's Constant - Definition, Formula and Example

Learn How to Calculate Photon Energy using Planck's Constant - Tutorial

Definition :

Plancks constant is a physical constant of proportionality connecting the energy of a photon to the frequency of the photon with an approximate value of 6.626 x 10-34 J.s.

Formula :
Energy of Photon (E) =hc/λ or E =hv
Where,

h=planck's constant (6.6260695729x10-34) c=velocity of light( 2.99792458x108) λ=Wavelength v=Frequency

Example :

Find the energy of photon if wavelength is 340 m.

Given,

Wavelength = 340 m

To Find,

Energy of photon

Solution :
Energy of Photon (E) = hc/λ
=6.6260695729 x 10-34 x 2.99792458 x 108 / 340
= 6.6260695729 x 2.99792458 x 10 -26 /340
= 0.57 e-27 Hz

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