Question

It takes time 12 minutes for light to reach from the sun to a planet. If speed of light is
taken to be 3 × 108 −1
, find the distance from the planet to the sun in km.

Answer 1

Answer:

1.29x10^13

Explanation:

see attachment

Answer 2

Answer:

the speed of light is 3 x 10*8

so speed is 300000m/s

actually it takes 8min to reach light from sun

8min x 60s= 480s

therefore distance is 300000 x 480s = 144000000 km