A ‘black hole’ is a body in space which does not allow any radiation to come out. This property is due to its
- Avery small size
- Bvery large size
- Cvery high densityCorrect
- Dvery low density
Explanation
The correct answer is C because a black hole is formed when a massive amount of matter is compressed into an extremely small volume, resulting in very high density. This extreme density creates an incredibly strong gravitational field. According to the laws of physics, the gravitational pull becomes so intense that the escape velocity required to leave the black hole exceeds the speed of light. Consequently, nothing, including light and other forms of electromagnetic radiation, can escape from it. While the physical size of the singularity is small, it is the density and the resulting gravity that prevent radiation from coming out.
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