According to Einstein's General Theory of Relativity, light can be bend using gravity. Is this scientifically proven ? If yes, then does this defies the rectilinear property of light ? Which property does light show here (ray, particle or wave) ?

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Solution

This is the phenomena wherein the “propgation”, or movement of light, is described as “rectilinear”, or in a straight line.

Light does not bend. This is the reason why you are unable to see around a corner.

Light, however, can be manipulated to act as though it is bending.

Refraction is the manipulation of light by placing an object in its path whose density is different to the surrounding medium. This will cause light to either slow down or speed up, and in doing so, it’s direction will be changed

Reflection is the bouncing of light off an object. If you place a mirror at a corner, you will be able to “see” around the corner, as light from around the corner is bouncing off the mirror and travelling towards your eyes

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