How much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is 3.85 × 10^5 km?

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Seudónimo Seudónimo

03-08-2022
Physics

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How much time is required for reflected sunlight to travel from the Moon to Earth if the distance between Earth and the Moon is 3.85 × 10^5 km?

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adioabiola adioabiola · Answer 1 · 2022-08-03T18:02:28+02:00

The amount of time required for reflected sunlight to travel from the moon to the earth according to the given distance between then and the speed of light is; 1.28 seconds.

How long does it take reflected sunlight to each the earth from the moon?

It follows from the task content that the time required for the reflected sunlight to reach the earth can be evaluated if the speed of light is known in which case, the speed of light, c = 3× 10⁸ m/s.

Consequently, we have time taken, t evaluated as follows;

Time taken, t = distance/speed

t = 3.85 ×10⁵ × 10³/3× 10⁸

t = 3.85/3

t = 1.28 seconds.