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We know light made up of photons which is massless, but why it can absorbed by black hole? Is it becuz the Einstein's relativity about every object can curve time space
LIght doesn't have mass but it has momentum and it moves along geodesics just like everything else that is not being acted on by outside forces.We know light made up of photons which is massless, but why it can absorbed by black hole? Is it becuz the Einstein's relativity about every object can curve time space
LIght doesn't have mass but it has momentum and it moves along geodesics just like everything else that is not being acted on by outside forces.
But Accord to momentum itu also need mass "p =mv which is non
Photons have a rest mass of zero, but they can never be at rest.
Consider that photons have a defined energy and then apply energy mass equivalence. This is a bit of hand waving, but should be adequate to answer your original question.
Is it becuz the Einstein's relativity about every object can curve time space
Newton's theory of gravitation predicted light, with no mass, will not be affected by gravity.
... Newton's theory of gravitation predicted light, with no mass, will not be affected by gravity.
Can you provide a corresponding calculation? In case of light deflection by a central mass I get half the effect compared to relativity.
How could you do a calculation in Newtonian physics that says light, being massless, is affected by gravity at anything other than zero effect?