Black Holes and Neutron Stars MCQs

1. What is a black hole?
(A) A bright object that reflects light
(B) A region of space with strong magnetic fields
(C) A region where gravity is so strong that nothing can escape
(D) A massive asteroid

2. What is the boundary around a black hole called?
(A) Neutron shell
(B) Photon belt
(C) Event horizon
(D) Singularity

3. Neutron stars are formed from the remnants of:
(A) Planetary explosions
(B) Dwarf stars
(C) Medium-mass stars
(D) Supernova explosions

4. What makes up a neutron star?
(A) Protons and electrons
(B) Hydrogen gas
(C) Neutrons packed tightly together
(D) Ice and dust

5. Which property is common to both neutron stars and black holes?
(A) Low gravity
(B) Strong magnetic fields
(C) Large size
(D) High density

6. What is at the center of a black hole?
(A) Empty space
(B) A burning core
(C) A singularity
(D) A neutron shell

7. Which astronomical phenomenon often precedes the formation of a black hole?
(A) Nova
(B) Comet impact
(C) Supernova
(D) Solar flare

8. What is a pulsar?
(A) A spinning black hole
(B) A rotating neutron star emitting beams of radiation
(C) A mini black hole
(D) A star about to explode

9. Can light escape from a black hole once it crosses the event horizon?
(A) Yes, if it is bright enough
(B) Only red light
(C) No
(D) Only in the case of small black holes

10. What tool is most commonly used to detect black holes indirectly?
(A) Thermometer
(B) Radio antenna
(C) X-ray telescope
(D) Binoculars