Question

It takes time 8 minutes for light to reach from the sun to the earth surface. If speed of light is taken to be 3 × 10^8 m s ^-1, find the distance from the sun to the earth in km​

Answer 1

Answer:

Time t=8 min=480 sec

Speed of light c=3×10

8

ms

−1

Distance=t×c=1.44×10

11

m=1.44×10

8

km

So order of magnitude os distance is 10

8

km