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Brown Dwarf Quiz

Picture


  • 1. What is a brown dwarf?
    The end stage of a white dwarf
    A type of neutron star
    A failed star
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  • 2. Who was the first to introduce the word 'brown dwarf'?
    Carl Sagan
    Jill Tarter
    Stephen Hawking
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  • 3. The first brown dwarf was discovered by,
    Eric Becklin
    Maria Mitchell
    Maria Teresa Ruiz
  •  

  • 4. Brown dwarfs emit most of their radiation as,
    Visible light
    Ultraviolet
    Infrared
  •  

  • 5. Which of these elements can be found inside a brown dwarf?
    Deuterium
    Lithium
    Helium
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  • 6. What is the distance to the closest brown dwarf?
    12 light-years
    23 light-years
    31 light-years
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  • 7. The size of a brown dwarf is similar to,
    Planet Jupiter
    The Earth
    The Moon
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  • 8. If brown dwarfs are found in large numbers, it will help solve the puzzle of,
    Missing mass of the galaxy
    Origin of the Milky Way
    Cosmic background radiation

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  • 9. Which of these processes takes place inside a brown dwarf?
    Proton-proton chain
    CNO cycle
    Deuterium burning
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  • 10. What is the name given to the hypothetical brown dwarf believed to orbit our sun?
    Regolith
    Nemesis
    Odysseus


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