Question

the speed of light in vaccum is
$3 \times {10}^{8}$
m/s. sunlight takes about 8 minutes to reach the earth. express distance of sun from earth in standard form

Answer 1

The distance sun-earth is d=93⋅106 miles
d=149.6⋅106km=149.6⋅109m
The speed of light is c=3⋅108ms−1
The time is
t=dc=149.6⋅1093⋅108=49.9⋅10=499s
Also,
t=8.32mn( 8mn19s )

Answer 2

answer is 144*10^9. see image for solution.