Question

Why black hole have black colour?

Answer 1

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ANSWER IS HERE

A black hole is black in colour because it absorbs lights of all frequencies.Because of this,it also radiates energy as a black body of specific temperature.It is proportional to the inverse of its mass or radius.A small black hole has high temperatures,so it radiates light at high frequencies.In the process,photons radiate away and each photon radiated away has energy proportional to its frequency.A black hole of small mass cannot radiate away photons with greater enerfy than the mass of the black hole.It has more frequency than the temperature and it emits the colour outside,since all the maximum colour is black,it is mostly black in colour.

In simple words,all the light around the black hole is particularly black.Since it radiates energy and absorbs its frequency,black hole is black in colour.

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