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Which of these is largest : astronomical...

Which of these is largest : astronomical unit, light year and par sec ?

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The unit par sec is larger then light year which
in turn is larger then an astronomical unit.
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Knowledge Check

  • Light year is :

    A
    light emitted by the sum in one year
    B
    time taken by light to travel from the sum to the earth
    C
    the distance travelled by light in one year, in free space
    D
    the time taken by earth to go round the sun once

  • Which of the following is the largest practical unit of mass ?

    A
    Slug
    B
    A.M.U.
    C
    Hyperkg
    D
    C.S.L

  • What is the relation between 1 astronomical unit (AU) and one parsec (P)?

    A
    `(1 AU)/(1 P)` = 5 second of an arc
    B
    `(1 AU)/(1 P)` = 1 second `(1)` of an arc
    C
    `(1 AU)/(1 P)` = 3 second of an arc
    D
    `(1 AU)/(1 P)` = 0.1 second of an arc

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