The momentum of a photon of energy hnu will b | vedclass

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Question

(B) According to Einstein's mass-energy equivalence relation,the energy of a photon is given by $E = mc^2$.Also,the energy of a photon is given by $E

Vedclass · Accepted Answer

$\frac{h
u}{c}$

Vedclass · Answer

(B) According to Einstein's mass-energy equivalence relation,the energy of a photon is given by $E = mc^2$.Also,the energy of a photon is given by $E = h
u$.Equating the two,we get $mc^2 = h
u$.Since momentum $p$ is defined as $p = mc$,we can rewrite the energy equation as $p \cdot c = h
u$.Therefore,the momentum of the photon is $p = \frac{h
u}{c}$.

The momentum of a photon of energy $h\nu$ will be:

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