Question

A laser beam after reflection from moon surface returns to earth after 2.6sec. Find the distance from the surface of earth.​

Answer 1

Answer:

Explanation:

= vt

Speed of light = 3 * 10^8 m/s

S= vt/2 because 2.6 is both side time

S= (3*10^8)2.6/2

S= 1.3(3*10^8)

S= 3.9*10^8 m