Astronut Of The Week -2

12 Questions | Total Attempts: 42

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Astronut Of The Week -2 - Quiz


Questions and Answers
  • 1. 
     Which of the following is NOT a theory about the end of the universe?
    • A. 

      Big Bang

    • B. 

      Big Freeze

    • C. 

      Big Bounce

    • D. 

      Big Rip

  • 2. 
    The Schwarzchild radius of an object:
    • A. 

      Depends solely on its mass

    • B. 

      Depends solely on its density

    • C. 

      Depends on both mass and density

    • D. 

      Depends on its surface area

  • 3. 
    The LIGO-India project will be jointly coordinated and executed by which of the premier Indian institutions1) IUCAA2) Indian Institute of Astrophysics3) Institute for Plasma Research 
    • A. 

      1,2

    • B. 

      2,3

    • C. 

      1,3

    • D. 

      All the above

  • 4. 
    A star whose mass is 5 times larger than the Sun's and whose luminosity is 100 times larger than the Sun's has a main-sequence lifetime about 
    • A. 

      5 times longer than the Sun's

    • B. 

      500 times longer than the Sun's

    • C. 

      5 times shorter than the Sun's

    • D. 

      20 times shorter than the Sun's

  • 5. 
    Which of the following particle is responsible for carrying away the missing energy and momentum in a nuclear decay process.
    • A. 

      Alpha particle

    • B. 

      Neutrino

    • C. 

      Lepton

    • D. 

      Proton

  • 6. 
    When an object crosses the event horizon and enters the black hole, for an external observer in an inertial reference frame
    • A. 

      The object will disappear immediately

    • B. 

      The object will first emit light then disappear after infinite time

    • C. 

      The object will seem to stretch along the axis joining it and the observer

    • D. 

      The object will stay at the event horizon and disappear after infinite time

  • 7. 
    The figure below illustrates the plausible shapes of the universe in accordance with general relativity. What does the symbol Ω0 indicate?
    • A. 

      Actual or observed mass density

    • B. 

      Critical mass density

    • C. 

      Density parameter

    • D. 

      Cosmological constant

  • 8. 
    If the energy of the universe is _______, it will eventually collapse into a Big Crunch.
    • A. 

      Positive

    • B. 

      Zero

    • C. 

      Negative

    • D. 

      None

  • 9. 
    Our universe is dominated by… 
    • A. 

      Ordinary matter

    • B. 

      Dark matter

    • C. 

      Dark energy

    • D. 

      Equal of all

  • 10. 
    The Crab Nebula (M1) is a
    • A. 

      . planetary nebula

    • B. 

      Supernova remnant

    • C. 

      Cluster associated with nebulosity

    • D. 

      Pulsar

  • 11. 
    There are two types of black holes__________ and _____________
    • A. 

      Gravitational and Supermassive

    • B. 

      Stellar and Supermassive

    • C. 

      Quasars and Dwarfs

    • D. 

      Stellar and Gravitational

  • 12. 
    The _____________ is speculated to be about 1 light year from the sun
    • A. 

      Kuiper Belt

    • B. 

      Van Allen Belt

    • C. 

      Oort Cloud

    • D. 

      Asteroid Belt

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