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Questions  

Comparing the masses of the two photons, of red light and violet light

a
The mass of the photon of violet light is greater than the mass of the red light
b
The mass of photon of violet light is less than the mass of red light
c
The mass of photon of violet light is equal to the mass of red light
d
The mass of photon of violet light may be greater or smaller than the mass of the red light depending upon the surrounding conditions

detailed solution

Correct option is A

According to Einstein’s equation mass of a photon is given by the relationE=hϑ=mc2 Or  m=hϑc2  or  m ∝ ϑSince frequency of violet  light photon is greater than the frequency of red light photon.Mass of violet photon is greater than the mass of red photon

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