Does light have mass ; If not, why is it effected by gravity?
This is a magnificent inquiry… On the principal occasion, it's replied by Einstein's hypothesis of general relativity. It's likewise fascinating because there is some sense wherein light has "mass" we would say, light appears to go in straight lines, unaffected by gravity. Obviously, light can twist when it goes through the point of interaction between two media - consider light refracting as passes from air into water, which is the peculiarity that makes a straw in a glass of water seem crimped at the point0 interaction. In any case, that twisting isn't gravitational; it's electromagnetic. In any case, light curves while going around gigantic bodies like neutron stars and dark openings. This is clarified by Einstein's hypothesis of general relativity. We are for the most part acquainted with huge articles being affected by gravity. For example, consider a planet circling the sun. As the planet moves, a centripetal power follows up on it, which bends t