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Hi all,

I'm 4th year electronics engineering student and so my question is curiosity.. We have taught that the photon has no mass, or its mass is zero. They even (the teachers and instructors) say that its mass is not negligible, but it is ZERO. This is for me not logical answer, it is a particle, then it must have a real mass even if this mass is 10^-99999999999Kg!

We have the energy of the photon E=hv, and we have E=mc^{2}

E=E

hv=mc^{2}

this means that m(photon)=hv/c^{2};

h/c^{2}is constant and the only variable is the frequency or the wavelength

This means that a photon with high frequency (which has higher energy) has more mass.

The mass of the photon (at a certain frequency) times c^{2}gives us it's energy (it looks similar to the kinetic energy of a moving mass).

A photon at rest or with no frequency does not exist, and therefore the rest mass is zero is only something theoretical...

And according to my view about the mass of the photon, if one substitute some different values of an electromagnetic wave, he will get logical values for the mass.

For example,

7.36 x 10^{-51}is h/c^{2}

for a 1MHz frequency, the mass of the photon will be about 7.36 x 10^{-45}which is logical since it is much less than the mass of an electron.

In dialectical materialism and as the science proved, the energy doesn't vanish. And here I mean by energy both m and E which are in unity. So if we considered the energy E to be a mass of photons (and for example, also phonon for heat energy..), the mass itself would be in unity and the energy becomes only a theoretical explanation of the mass energy particles.

Awaiting for your views...

Hazim

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# Mass of the photon depends on the frequency?

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