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According to Einstein equation:-

M1 = m/(1-v^2/c^2), Where M1 is the mass at certain speed, and m is the mass of the particle at rest.
Now if light has velocity c then what ever the mass of light(whether negligible)should be infinite.If it is infinite then it attract every object of this universe, which contradicts our supposition & so the other part of our answer must be correct , i.e light has no mass.

What kind of fprce you experience when you travel parallel to light?

How can you prove that our universe is finite or infinite? And what is Big Crunch?

only 2 significant figures are there in 62000

A police man force a man to change its statement in court. what kind of force this shows.