Question

what is black hole?​

Answer 1

black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

Answer 2

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what is black hole?

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Blackhole:-

Black holes are one of the strangest things in the Universe. They don’t seem to make any sense at all. It is an enormous amount of matter packed into a minimal area.

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Types of Blackhole:-

There are four types of black holes as follows:

• Stellar
• Intermediate
• Supermassive
• Miniature

Can a Black Hole Destroy Earth?

Earth will not fall into a black hole because no black hole is close to the Solar system for the Earth to do that. Besides, black holes do not go around the Universe swallowing stars and planets. Suppose a black hole were to take the place of the Sun. Earth would still not fall into it and would orbit the black hole as it would orbit the Sun.

How Are Black Holes Formed?

A collection of massive hydrogen atoms is what makes a star. In their core, hydrogen atoms fuse into helium, releasing a tremendous amount of energy. The liberated energy, in the form of radiation, pushes against gravity and maintains a delicate balance between the two forces. A star is stable enough as long as there is fusion in the core. In stars, much more massive than Sun, the heat and pressure at the core allow them to fuse into heavier elements until they form iron. Iron builds up in the centre of the core until it reaches a certain critical point, and suddenly, the balance between radiation and gravity is broken. This results in the core collapsing and imploding into itself. Moving at about the quarter of the speed of light, it feeds even more mass into the core. It is at this very moment that all the heavier elements in the Universe are formed. As the stars die in a supernova explosion, they either turn into a neutron star or a black hole depending on the mass of the star.

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