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Light is affect by gravity, true or false.
What is True. The fact that light is affected by gravity is why black holes are black. The gravitational pull of a black hole is so ridiculously strong that even light, traveling at 3×10^8 m/s, cannot break free from it. Since light cannot escape from black holes (i.e. its escape velocity is greater than the speed of light), they appear black. An interesting fact about black holes: they are so dense that a black hole with mass equal to the sun would have a radius of only 3 km!