Let p and E denote the linear momentum and energy of a photon. If the wavelength is decreased,
We know,
& 
are the energy and linear momentum of a photon of light, where 
=Planck constant, 
=Velocity of photon, 
=Wavelength of light and 
=Frequency of light.
If the wavelength is decreased, both 
and 
increases since 
and
.
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