Understanding Black Holes and Hawking Radiation

Why are black holes considered dangerous for a galactic vacation?

• Their gravitational pull can spaghettify objects.

• They are too far away to reach.

• They emit harmful radiation.

• They have strong magnetic fields.

What is the event horizon of a black hole?

• The region where time stops.

• The outermost layer of a black hole.

• The center of the black hole.

• The point where light cannot escape.

What happens to light as it passes near a massive object like a black hole?

• It speeds up.

• It travels in a straight line.

• It bends due to warped spacetime.

• It gets absorbed completely.

What is Hawking radiation?

• Light trapped inside a black hole.

• Heat generated by the sun.

• Energy released by black holes.

• Radiation emitted by stars.

How does Hawking radiation lead to the evaporation of black holes?

• By cooling down the black hole.

• By absorbing energy from nearby stars.

• By emitting particles that reduce the black hole's mass.

• By increasing the black hole's mass.

What role do virtual particles play in Hawking radiation?

• They stabilize the black hole's structure.

• They contribute to the black hole's evaporation.

• They create a magnetic field around the black hole.

• They increase the black hole's mass.

What is the Unruh effect?

• The bending of light around massive objects.

• The distortion of time near black holes.

• The expansion of the universe.

• The appearance of particles in different reference frames.

Why is it difficult to observe black holes directly?

• They are too small to detect.

• They are hidden behind other celestial objects.

• Their radiation is drowned out by cosmic microwave background.

• They move too quickly through space.

What is the significance of Hawking radiation in physics?

• It proves the existence of black holes.

• It describes the behavior of light in space.

• It bridges quantum mechanics and general relativity.

• It explains the formation of galaxies.

How long would it take for a supermassive black hole to evaporate?

• 10 to the 100 years

• 10 to the 67 years

• 10 to the 1000 years

• 10 to the 10 years