Home» Online Test » Astronomy » Black Hole Online Test 0% Sorry, time's up. To complete the online test, please restart it. 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 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* 2 / 30 2. What significant finding was reported in the research paper titled "Observational Evidence for Intermediate-mass Black Holes" by Sean Farrell et al., published in 2009? a) Discovery of a population of primordial black holes b) Measurement of the spin of a supermassive black hole using X-ray emissions c) Detection of gravitational waves from a binary black hole merger d) Evidence for the existence of intermediate-mass black holes in globular clusters 3 / 30 3. What is the mass of M87's Supermassive Black Hole, as estimated from the 2019 EHT image? a) 1 million solar masses b) 10 million solar masses c) 100 million solar masses d) 1 billion solar masses 4 / 30 4. What is the term used to describe the stretching and elongation of an object as it approaches the event horizon of a black hole? a) Time dilation b) Gravitational lensing c) Black hole evaporation d) Spaghettification 5 / 30 5. Which of the following is a property that black holes can possess? a) Mass b) Charge c) Angular Momentum d) All of the above 6 / 30 6. 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 7 / 30 7. How does general relativity explain the strong gravitational pull of black holes? a) By the accumulation of dark matter b) By the rotation speed of the black hole c) By the warping of spacetime due to the black hole's mass d) By the presence of antimatter 8 / 30 8. What recent discovery provided evidence for the existence of a population of "intermediate-mass" black holes in star clusters? a) X-ray emissions from an ultraluminous X-ray source b) Detection of gravitational waves from a black hole merger c) Observation of hypervelocity stars escaping a galactic center d) Imaging of a black hole shadow using the Event Horizon Telescope 9 / 30 9. 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 10 / 30 10. Which method has been instrumental in detecting black holes indirectly by observing their gravitational effects on nearby objects? a) Optical telescopes b) Radio telescopes c) X-ray telescopes d) Gravitational wave detectors 11 / 30 11. Which observable phenomena are often associated with stellar-mass black holes? a) Solar flares b) Gamma-ray bursts c) Pulsar emissions d) Planetary transits 12 / 30 12. Which phenomenon is often observed near supermassive black holes due to their intense gravitational fields? a) Supernova explosions b) Gravitational lensing c) Pulsar emissions d) Stellar formation 13 / 30 13. Which effect can be observed just outside the event horizon of a black hole? a) Gravitational redshift b) Cosmic microwave background c) Galactic rotation curves d) Doppler effect 14 / 30 14. 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 15 / 30 15. What is the singularity inside a black hole? a) A large mass b) A region of zero volume and infinite density c) A light source d) A space-time warp 16 / 30 16. 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 17 / 30 17. Which theory of physics is primarily used to describe black holes? a) Quantum Mechanics b) General Relativity c) Classical Mechanics d) Thermodynamics 18 / 30 18. 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 19 / 30 19. What role might intermediate-mass black holes play in the formation of supermassive black holes? a) They prevent the growth of supermassive black holes b) They merge to form supermassive black holes c) They disperse matter, inhibiting black hole growth d) They have no role in the formation of supermassive black holes 20 / 30 20. What is the primary wavelength range that the James Webb Space Telescope (JWST) is designed to observe? a) X-ray b) Ultraviolet c) Infrared d) Gamma-ray 21 / 30 21. What is the estimated mass of Sagittarius A*, the supermassive black hole at the center of the Milky Way? a) 10,000 solar masses b) 100,000 solar masses c) 1 million solar masses d) 4 million solar masses 22 / 30 22. What is the approximate mass of the supermassive black hole in the galaxy M87, as observed by the Event Horizon Telescope? a) 1 million solar masses b) 6.5 million solar masses c) 6.5 billion solar masses d) 100 million solar masses 23 / 30 23. What mass range defines an intermediate-mass black hole? a) 10 to 100 solar masses b) 100 to 10,000 solar masses c) 1,000 to 100,000 solar masses d) 10,000 to 1 million solar masses 24 / 30 24. What concept describes the infinite density at the center of a black hole? a) Photon Sphere b) Singularity c) Wormhole d) White Hole 25 / 30 25. Which famous black hole was imaged for the first time in 2019, revealing its shadow against the surrounding glowing gas? a) Cygnus X-1 b) Sagittarius A* c) M87's Supermassive Black Hole d) V404 Cygni 26 / 30 26. What aspect of the universe will the James Webb Space Telescope (JWST) primarily focus on studying? a) Dark matter and dark energy b) Exoplanets and habitability c) Active galactic nuclei and black holes d) The early universe and the formation of galaxies 27 / 30 27. What is the term for the process in which a stellar-mass black hole pulls matter from a companion star? a) Accretion b) Spaghettification c) Hawking Radiation d) Redshift 28 / 30 28. What is the theoretical temperature of a black hole's event horizon, as predicted by Hawking radiation? a) Absolute zero b) Planck temperature c) Infinity d) Depends on the mass of the black hole 29 / 30 29. What property of a black hole is inferred from the observation of its X-ray emissions? a) Spin b) Charge c) Temperature d) Mass accretion rate 30 / 30 30. What phenomenon occurs when an object gets stretched by a black hole’s tidal forces? a) Time Dilation b) Spaghettification c) Cosmic Inflation d) Redshift Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Black Hole MCQ PDF for Offline Study
