Question

Light travels at a rate of 3.00 x 10^8 m/s. It takes light 8.30 min to travel from the surface of the sun to the earth. What is the distance of the earth from the sun?

Answer 1

Answer: The distance of the earth from the sun is $1.494\times 10^{11}m$

Explanation:

Speed of light = $3.00\times 10 ^8 m/s$

Time taken to travel from sun to earth = 8.30 mins = $8.3\times 60=498sec$    (1min=60 s)

As we know ; Speed is defined as the distance travelled per unit time.

$Distance=speed\times time$

Hence distance between sun and earth =$3.00\times 10^8m/s\times 498s=1.494\times 10^{11}m$

Thus the distance of the earth from the sun is $1.494\times 10^{11}m$