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Lajvati Singh
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Asked: 2021-02-09T08:16:02+00:00 In:

A laser light beamed at the moon takes 2.56s and to return after reflection at the moon’s surface. What will be the radius of lunar orbit

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NCERT Solutions for Class 11 Science Properties of matter 1
Important Board Questions
Dimension and Measurement
NCERT Books for Session 2022-2023
CBSE Board and UP Board
Numerical And Long Questions

2020-2021cbsechapter 1class 11class 11 sciencedimension and measurementncertphysicsscience
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    1 Answer

    1. t = time taken by laser beam to go to the moon =
      distance between earth and moon
      = d = c × t/2
      = 3×10⁸x 2.56/2
      = 3.84 x 10⁸ m.

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