Question

    Light year is a measure

    of
    A Time Correct Answer Incorrect Answer
    B Distance Correct Answer Incorrect Answer
    C Total amount of light falling on the earth in a year Correct Answer Incorrect Answer
    D Average intensity of light falling on the earth in a year Correct Answer Incorrect Answer

    Solution

    • A light-year is the distance that light travels in one year in a vacuum . • 1 light-year ≈ 9.461 trillion km. • It is a unit of distance , not time.

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