Black Hole Online Test

Created by

Vikash chaudhary

This 'Black Hole Online Test' covers questions across all the topics related to the Black Holes.

Get fresh, new questions in each attempt.

Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
Randomization: Yes
Certificate: Yes
Do not refresh the page!
👍 All the best!

1 / 30

1. What is one proposed solution to the information paradox that reconciles quantum mechanics with general relativity?

a) Fuzzball theory

b) String theory

c) Loop quantum gravity

d) Black hole complementarity

2 / 30

2. What is the typical end state of a star with a mass greater than 20 solar masses after it exhausts its nuclear fuel?

a) White dwarf

b) Neutron star

c) Stellar-mass black hole

d) Red giant

3 / 30

3. What is the name of the black hole system that produced the first-ever observed gravitational waves, detected in 2015?

a) Cygnus X-1

b) V404 Cygni

c) GW170817

d) GW150914

4 / 30

4. What is the fate of a star much more massive than the Sun after it exhausts its nuclear fuel?

a) It becomes a red giant

b) It forms a white dwarf

c) It collapses into a black hole

d) It turns into a brown dwarf

5 / 30

5. What is the primary method for detecting stellar-mass black holes in binary systems?

a) Optical imaging

b) X-ray emissions

c) Infrared spectroscopy

d) Radio wave observations

6 / 30

6. What is a supernova?

a) The explosion of a star

b) The collapse of a galaxy

c) The formation of a planet

d) The birth of a star

7 / 30

7. What significant concept was introduced in the research paper titled "The No-Hair Theorem in General Relativity" by Brandon Carter, published in 1971?

a) The concept of black hole complementarity

b) The existence of gravitational waves

c) The idea that black holes can emit radiation

d) The no-hair theorem, stating that black holes have only three observable properties: mass, charge, and angular momentum

8 / 30

8. What is one challenge in confirming the existence of primordial black holes?

a) Their rapid movement through space

b) Their high visibility in the electromagnetic spectrum

c) Their very small size or very large mass

d) Their lack of gravitational influence

9 / 30

9. What observational method might help detect primordial black holes?

a) Direct imaging in visible light

b) Detection of gravitational waves from their mergers

c) Observation of gamma-ray bursts

d) Measurement of cosmic microwave background radiation

10 / 30

10. What concept describes the infinite density at the center of a black hole?

a) Photon Sphere

b) Singularity

c) Wormhole

d) White Hole

11 / 30

11. In what kind of binary system are stellar-mass black holes often found?

a) Star-planet binary

b) Star-star binary

c) Black hole-neutron star binary

d) Star-black hole binary

12 / 30

12. Which of the following phenomena occurs when matter spirals into a black hole, emitting high-energy radiation detectable by X-ray telescopes?

a) Accretion disk

b) Photon sphere

c) Event horizon

d) Gravitational lensing

13 / 30

13. Which observation supports the idea that black holes can form from the collapse of massive stars, as predicted by general relativity?

a) The detection of neutrinos

b) The redshift of distant galaxies

c) The observation of supernova remnants

d) The discovery of exoplanets

14 / 30

14. How might primordial black holes influence the formation of structures in the early universe?

a) By initiating galaxy formation

b) By preventing star formation

c) By scattering interstellar matter

d) By acting as seeds for the formation of galaxies

15 / 30

15. What is spaghettification, a phenomenon experienced by objects falling into a black hole?

a) Objects become denser as they approach the event horizon

b) Objects experience extreme heat and radiation

c) Objects are compressed into a singularity

d) Objects stretch into thin, elongated shapes due to tidal forces

16 / 30

16. What is the information paradox in the context of black holes?

a) The inability to observe black holes directly

b) The loss of information about matter that falls into a black hole

c) The difficulty in measuring the mass of a black hole

d) The absence of Hawking Radiation from certain black holes

17 / 30

17. What was the first black hole to be discovered and confirmed through observational evidence?

a) Cygnus X-1

b) M87's Supermassive Black Hole

c) Sagittarius A*

d) V404 Cygni

18 / 30

18. Which space observatory has contributed to the search for intermediate-mass black holes through X-ray observations?

a) Hubble Space Telescope

b) Chandra X-ray Observatory

c) James Webb Space Telescope

d) Spitzer Space Telescope

19 / 30

19. What phenomenon occurs when a black hole absorbs a nearby star or gas cloud, causing a sudden increase in brightness observed from Earth?

a) Stellar explosion

b) Supernova

c) Gamma-ray burst

d) Tidal disruption event

20 / 30

20. What significant result was reported in the research paper titled "Black Hole Mergers: The Inevitability of Gravitational Waves" by Bernard F. Schutz and Clifford M. Will, published in 1985?

a) Discovery of the first black hole-neutron star binary system

b) Measurement of the spin rate of a supermassive black hole

c) Theoretical prediction of the existence of gravitational waves from black hole mergers

d) Evidence for the existence of a population of primordial black holes

21 / 30

21. What groundbreaking discovery was announced by astronomers in 2020 regarding the black hole at the center of the Milky Way?

a) Evidence of a supermassive black hole merger

b) Detection of gravitational waves from Sagittarius A*

c) Identification of a new class of intermediate-mass black holes

d) Confirmation of the existence of a disk of gas orbiting Sagittarius A*

22 / 30

22. What is the final stage of a black hole's evaporation, according to Hawking's theory?

a) Formation of a neutron star

b) Disintegration into subatomic particles

c) Explosion as a gamma-ray burst

d) Collapse into a singularity

23 / 30

23. Which research paper, published in 2019, presented the first image of a black hole's event horizon, obtained using the Event Horizon Telescope (EHT)?

a) "Observation of Gravitational Waves from a Binary Black Hole Merger"

b) "First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole"

c) "The Event Horizon Telescope Collaboration. Imaging the Central Supermassive Black Hole"

d) "Detection of the First Interstellar Object 1I/2017 U1 'Oumuamua"

24 / 30

24. What is the final evolutionary stage of a low-mass star?

a) Black hole

b) Neutron star

c) White dwarf

d) Red supergiant

25 / 30

25. Which organization is responsible for the development and launch of the James Webb Space Telescope (JWST)?

a) European Space Agency (ESA)

b) Russian Space Agency (Roscosmos)

c) China National Space Administration (CNSA)

d) National Aeronautics and Space Administration (NASA)

26 / 30

26. What defines a supermassive black hole?

a) A black hole with mass greater than 20 solar masses

b) A black hole with mass between 20 and 100 solar masses

c) A black hole with mass greater than 100,000 solar masses

d) A black hole with mass greater than 1 million solar masses

27 / 30

27. Which observation would indicate the presence of an intermediate-mass black hole in a star cluster?

a) High-energy gamma rays

b) Rapid star formation

c) High velocity of stars near the cluster's center

d) Low-mass star ejections

28 / 30

28. What observable feature is often left behind after a supernova explosion?

a) A black hole

b) A neutron star

c) A supernova remnant

d) A white dwarf

29 / 30

29. What is the name of the supermassive black hole at the center of the Milky Way galaxy?

a) Andromeda

b) Sagittarius A*

c) Cygnus X-1

d) M87*

30 / 30

30. What is Hawking Radiation?

a) Light emitted from the event horizon

b) Thermal radiation predicted to be released by black holes

c) Sound waves detected from black holes

d) The shadow cast by a black hole

Please provide accurate information so we can send your Achievement Certificate by mail.

NameEmailPhone Number

Your score is

Please provide your feedback.

Thank you for your valuable feedback.

Buy Black Hole MCQ PDF for Offline Study

This 'Black Hole Online Test' covers questions across all the topics related to the Black Holes.

Please provide accurate information so we can send your Achievement Certificate by mail.

Related MCQs