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  • which of the following is correct relation for the mass of a photonOption: 1 <img alt="m=\frac{h\nu }{c}" src="https://learn.careers360.com/latex-ima

which of the following is correct relation for the mass of a photon

Option: 1

m=\frac{h\nu }{c}

 

 

 


Option: 2

m=\frac{c}{h\nu}


Option: 3

m=\frac{c^{2}}{h\nu}


Option: 4

m=\frac{h\nu}{c^{2}}


Answers (1)

best_answer

As we learned

The energy of a photon is given by E = h\nu
& energy is also given by   E=mc^{2}

So 

mc^{2}=h\nu \Rightarrow m=\frac{h\nu }{c^{2}}

where m=mass of the photon.

We can also see that the photon has zero rest mass

because at \ v=0 \Rightarrow m=0

i.e Photon can not exist at rest.

 

Posted by

shivangi.bhatnagar

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