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 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. Which method is used to estimate the mass of a stellar-mass black hole in a binary system? a) Measuring the orbital period and velocity of the companion star b) Observing the color of the black hole c) Measuring the intensity of gravitational waves d) Counting the number of planets in the system 2 / 30 2. What was the key finding of the research paper titled "Measurement of Gravitational Waves from a Binary Black Hole Merger" by the LIGO Scientific Collaboration and Virgo Collaboration, published in 2016? a) Detection of gravitational waves from a neutron star merger b) Confirmation of the existence of intermediate-mass black holes c) Observation of the merger of two stellar-mass black holes d) Measurement of the spin rate of a supermassive black hole 3 / 30 3. What is the primary scientific objective of the James Webb Space Telescope (JWST)? a) Studying the atmospheres of exoplanets b) Mapping the magnetic fields of distant galaxies c) Observing the dynamics of star formation in the Milky Way d) Investigating the early universe and the formation of galaxies 4 / 30 4. 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 5 / 30 5. What was the primary objective of the NICER mission launched by NASA in 2018? a) Studying the atmosphere of Mars b) Observing the outer planets of the solar system c) Investigating the interiors of neutron stars d) Mapping the magnetic fields of distant galaxies 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 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 8 / 30 8. 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 9 / 30 9. What defines the boundary beyond which events cannot affect an outside observer in a black hole? a) Photon sphere b) Singularity c) Event horizon d) Accretion disk 10 / 30 10. 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 11 / 30 11. 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 12 / 30 12. What is gravitational time dilation, a phenomenon predicted by general relativity? a) The acceleration of time near massive objects b) The constant speed of light c) The slowing down of time near massive objects d) The bending of light near massive objects 13 / 30 13. What concept describes the infinite density at the center of a black hole? a) Photon Sphere b) Singularity c) Wormhole d) White Hole 14 / 30 14. What was the primary focus of the research paper titled "Gravitational Wave Detection by Interferometry (Project ARISE)" by Rainer Weiss, published in 1972? a) Development of the first interferometric gravitational wave detector b) Theoretical prediction of the existence of gravitational waves from black hole mergers c) Discovery of the first black hole-neutron star binary system d) Measurement of the spin of a supermassive black hole using X-ray emissions 15 / 30 15. What was the first direct evidence of the existence of M87's Supermassive Black Hole? a) X-ray emissions from its accretion disk b) Detection of gravitational waves c) Observation of stars orbiting rapidly near its center d) Imaging its event horizon using the Event Horizon Telescope 16 / 30 16. What term describes the process of a black hole pulling matter from a nearby star? a) Spaghettification b) Accretion c) Redshift d) Hawking Radiation 17 / 30 17. What is the significance of studying black holes using multiple wavelengths, including X-rays, radio waves, and visible light? a) It allows for the direct observation of black holes b) It provides a comprehensive view of black hole environments and processes c) It enables the detection of gravitational waves from black hole mergers d) It helps measure the mass of black holes accurately 18 / 30 18. What did Stephen Hawking propose as a solution to the information paradox? a) Black holes have no event horizons b) Information is encoded on the event horizon c) Information leaks out of black holes over time d) Information is irretrievably lost in black holes 19 / 30 19. What is the name of the boundary around a black hole beyond which nothing can escape, as predicted by general relativity? a) Event Horizon b) Singularity c) Photon Sphere d) Accretion Disk 20 / 30 20. Where are intermediate-mass black holes often hypothesized to exist? a) In the center of galaxies b) In globular clusters c) In the outer regions of galaxies d) In intergalactic space 21 / 30 21. What significant event in black hole astronomy occurred in 2017 with the detection of gravitational waves from a binary neutron star merger? a) First direct imaging of a black hole event horizon b) First observation of a supermassive black hole feeding c) First detection of a black hole-neutron star binary system d) First detection of electromagnetic counterparts to gravitational waves 22 / 30 22. 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 23 / 30 23. What is the firewall paradox, a challenge to our understanding of black holes? a) The paradox suggesting that black holes emit a firewall of radiation b) The paradox concerning the sudden disappearance of black hole event horizons c) The paradox involving inconsistencies between classical and quantum descriptions of black holes d) The paradox related to the existence of exotic matter near black holes 24 / 30 24. What international space agency is collaborating with NASA on the James Webb Space Telescope (JWST) mission? a) European Space Agency (ESA) b) Russian Space Agency (Roscosmos) c) China National Space Administration (CNSA) d) Indian Space Research Organisation (ISRO) 25 / 30 25. Which process leads to the formation of heavier elements during a star's life cycle? a) Nuclear fusion b) Nuclear fission c) Radioactive decay d) Gravitational collapse 26 / 30 26. What is the event horizon of a black hole often referred to as? a) Point of no return b) Singularity c) Photon sphere d) Accretion disk 27 / 30 27. What property of a black hole is responsible for determining the curvature of spacetime around it? a) Temperature b) Charge c) Spin d) Mass 28 / 30 28. What is the Schwarzschild radius of a black hole? a) The radius of the accretion disk b) The radius of the event horizon c) The distance from the black hole where light cannot escape d) The radius of the black hole's singularity 29 / 30 29. What defines the Chandrasekhar limit? a) The maximum mass of a neutron star b) The maximum mass of a stable white dwarf c) The minimum mass required to form a black hole d) The minimum mass required for nuclear fusion 30 / 30 30. 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 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 Share the above MCQs: Click to share on Facebook (Opens in new window) Facebook Click to share on WhatsApp (Opens in new window) WhatsApp Click to share on X (Opens in new window) X Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on Reddit (Opens in new window) Reddit
