Black holes - GS questions based on daily current affairs

1)   Which of the following statements is/are correct about black hole?

1. Black hole is evolutionary end point of a massive star
2. The density of a black hole is infinite

a. Only 1
b. Only 2
c. Both
d. None
Answer  Explanation 

ANSWER: Both

Explanation:
- Black holes are formed when heavy stars exhaust all their hydrogen and collapse under their own weight
- They are exotic space phenomena whose gravitation pulls are so strong that not even light can escape.
- Black holes were first conceived of by John Mitchell some 230 years ago.

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