black hole light ko apne andar sama lete hai to fir humko ye black hole dikhta he kyu hai ..
jesa ke hume pata hai light makes things visible.. to black holes to light ko absorbe kr deta hai... to hume black hole nehi dikhai dene chaieya. pr black hole dikhai dete hai ?
Answers
Answer:
thnx( ◜‿◝ )♡
Explanation:
in
many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass.
isliye
A black hole itself does not give off any light. That is why it is called black. However, matter that is near a black hole can give off light in response to the black hole's gravity.
A black hole is a region of space where gravity is so strong that nothing can escape, not even light. It might be surprising to you to hear that gravity can affect light even though light has no mass. If gravity obeyed Newton's law of universal gravitation, then gravity would indeed have no effect on light. However, gravity obeys a more modern set of laws known as Einstein's general theory of relativity. According to general relativity, gravity is actually caused by a curving of space and time. Since light travels in a straight line through straight spacetime, the curving of spacetime causes light to follow a curved path. The gravitational curvature of light's path is a weak enough effect that we don't notice it much on earth. However, when gravity is very strong, the bending of light's path becomes significant. A black hole is a region where spacetime is so curved that every possible path which light could take eventually curves and leads back inside the black hole. As a result, once a ray of light enters a black hole, it can never exit. For this reason, a black hole is truly black and never emits light.