A laser beam aimed at the moon takes 2.56 second to return after reflection at moon surface.Find the radius of lunar orbit around earth
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Answer:
3.84 x 10^7 km
Explanation:
Distance = speed x time
= 3x10^8 x 2.56
= 768 x 10^8
= 7.68 x 10^7 km
Total distance travelled by beam is twice the distance between moon & earth .
So required distance = 3.84 x 10^7 km
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