Question

Assuming that light travels at about 186 thousand miles per second, and the Sun isabout 93 million miles from the Earth, how much time does light take to reach the Earthfrom the Sun?

Answer 1

93 million miles = 9.3x10⁷ miles

186,000 miles/sec = 1.86x10⁵ miles/sec

9.3x10⁷ miles x 1 sec/1.86x10⁵ miles = 5x10² seconds = 500 seconds

Converting to minutes:

500 seconds x 1 minute/60 seconds = 8.33 minutes for light to reach earth (this is equal to 8 minutes 20 seconds)