Chemistry, asked by roshansm8618, 1 year ago

the rest mass of a photon of wavelength is?

Answers

Answered by iris100
0
The rest mass of a photon is always zero..
Answered by Anonymous
2

The rest mass of a photon is zero .


Details .


The photon is a light particle .

It is never at rest.


It is always in motion.


Hence rest energy is zero.


Put this in the Einstein's equation :


E² = m²c⁴ + p²c²

When an object is at rest , p = 0 .

Rest energy = 0


⇒ m²c⁴ = E

But c is not 0 .


So rest mass has to be 0.

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