Question 1:

What is the event horizon of a black hole?

Explanation: The event horizon of a black hole is the boundary beyond which nothing, not even light, can escape the black hole's gravitational pull. It is the point of no return. Therefore, the correct answer is B) The boundary beyond which nothing can escape the black hole's gravitational pull.

Question 2:

What lies beyond the event horizon of a black hole?

Explanation: Beyond the event horizon of a black hole lies the region where matter is crushed to infinity, known as the singularity. It is a point of infinite density and gravity. Therefore, the correct answer is C) The singularity.

Question 3:

What happens to time near the event horizon of a black hole?

Explanation: Near the event horizon of a black hole, time slows down significantly due to the intense gravitational field. This phenomenon, known as time dilation, is a consequence of Einstein's theory of general relativity. Therefore, the correct answer is B) Time slows down significantly.

Question 4:

What is the size of the event horizon of a black hole?

Explanation: The size of the event horizon of a black hole depends on its mass. The more massive the black hole, the larger its event horizon. Therefore, the correct answer is A) It varies depending on the mass of the black hole.

Question 5:

Can anything escape from inside the event horizon of a black hole?

Explanation: Once inside the event horizon of a black hole, nothing, including light, can escape the intense gravitational pull. The escape velocity exceeds the speed of light, making it impossible for anything to break free. Therefore, the correct answer is B) No, nothing can escape from inside the event horizon.