Answer to Question #170232 in Physics for Isabel

Question

On the Moon's surface, lunar astronauts placed a corner reflector, off which a laser beam is periodically reflected. The distance to the Moon is calculated from the round-trip time. Assume the distance to the Moon is precisely 3.84  10⁸ m, and the Earth's atmosphere (which varies in density with altitude) is equivalent to a layer 30.0 km thick with a constant index of refraction n = 1.000293.

 What percent correction is needed to account for the delay in time due to the slowing of light in the Earth's atmosphere?

Answer 1

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