Question

It takes time 8 min for light to reach from the sun to
the earth surface. If speed of light is taken to be
3 x 108 m s-l, find the distance from the sun to the
earth in km.
Ans. 1.44 x 108 km​

Answer 1

Answer:

Distance = speed x time taken

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

Time taken = 8 mins = 8 x 60s = 480s

Distance = 3 x 10^8 m/s x 480s

= 1.44 x 10^11 m = 1.44 x 10^8km