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. What is the typical energy release of a supernova compared to the Sun's lifetime energy output? a) Equal to one year of the Sun's energy output b) Equal to the Sun's energy output in its entire lifetime c) Equal to the Sun's energy output in one second d) Equal to the Sun's energy output in one month 2 / 30 2. What is the name of the method used to measure the mass of a black hole by observing the Doppler shifts in the spectral lines of stars or gas orbiting around it? a) Gravitational lensing b) X-ray spectroscopy c) Doppler tomography d) Radial velocity method 3 / 30 3. What instrument was used by astronomers to make the discovery of the disk of gas around Sagittarius A* in 2020? a) Hubble Space Telescope b) Chandra X-ray Observatory c) Atacama Large Millimeter/submillimeter Array (ALMA) d) Very Large Telescope (VLT) 4 / 30 4. What is the primary mechanism behind Hawking Radiation? a) Quantum tunneling of particles near the event horizon b) Nuclear fusion within the black hole's core c) Magnetic reconnection in the accretion disk d) Gravitational lensing of nearby stars 5 / 30 5. What theoretical concept suggests that black holes may be replaced by fuzzballs, eliminating the need for an event horizon? a) No-hair theorem b) Fuzzball theory c) Holographic principle d) Firewall paradox 6 / 30 6. What is the estimated mass of Cygnus X-1, the first confirmed black hole? a) 3 solar masses b) 10 solar masses c) 15 solar masses d) 30 solar masses 7 / 30 7. 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 8 / 30 8. What is the name of the observatory that made the first direct detection of gravitational waves from a black hole merger? a) Hubble Space Telescope b) Chandra X-ray Observatory c) Laser Interferometer Gravitational-Wave Observatory (LIGO) d) Very Large Telescope (VLT) 9 / 30 9. 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 10 / 30 10. What is one advantage of studying black holes using X-ray emissions compared to other wavelengths? a) X-rays can penetrate interstellar dust more easily b) X-rays travel faster than other types of radiation c) X-rays are less affected by gravitational lensing d) X-rays provide higher resolution images 11 / 30 11. Which term describes the light emitted from the edge of the event horizon due to gravitational effects? a) Hawking Radiation b) X-ray flares c) Accretion Radiation d) Relativistic Jets 12 / 30 12. What is gravitational lensing, a phenomenon commonly observed near black holes? a) The distortion of space and time by gravity b) The emission of gravitational waves c) The bending of light around massive objects d) The stretching of matter into spaghetti-like shapes 13 / 30 13. 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 14 / 30 14. 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 15 / 30 15. 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 16 / 30 16. How is the mass of a black hole typically measured in astronomical observations? a) By directly observing its event horizon b) By analyzing the X-ray emissions from its accretion disk c) By measuring the gravitational lensing of background stars d) By studying the orbital motion of objects around it 17 / 30 17. 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 18 / 30 18. 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 19 / 30 19. What prediction of general relativity has been confirmed by the observation of black hole mergers? a) The existence of dark energy b) The bending of light c) The emission of gravitational waves d) The expansion of the universe 20 / 30 20. What term describes the process of a black hole pulling matter from a nearby star? a) Spaghettification b) Accretion c) Redshift d) Hawking Radiation 21 / 30 21. 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 22 / 30 22. 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 23 / 30 23. 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 24 / 30 24. During which stage does a star spend the majority of its life? a) Red Giant b) Main Sequence c) Supernova d) Black Hole 25 / 30 25. How does the rate of Hawking Radiation emission change as a black hole's mass decreases? a) The rate decreases b) The rate increases c) The rate remains constant d) The rate fluctuates 26 / 30 26. 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 27 / 30 27. Which astronomical event can sometimes be mistaken for a supernova due to its brightness? a) A comet b) A nova c) A planetary nebula d) An eclipse 28 / 30 28. Which type of black hole is formed from the remnants of a single massive star? a) Stellar-mass black hole b) Intermediate-mass black hole c) Supermassive black hole d) Primordial black hole 29 / 30 29. 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 30 / 30 30. 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 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)Click to share on WhatsApp (Opens in new window)Click to share on X (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)
