RAJASTHAN ­ PET Rajasthan PET Solved Paper-2007

  • question_answer
    Light year is used to measure

    A)  distance between stars

    B)  distance between atoms

    C)  revolution time of earth around sun

    D)  None of the above

    Correct Answer: A

    Solution :

     Light year is important unit of long distances (to measure distance of stars, terrestrial objects) 1 light year \[=9.46\times {{10}^{15}}m\]


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