How long would it take light from the sun to reach Uranus?

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Answer 1 · 2016-11-06T12:40:43

#=2 h 39 m 42 s#, nearly

The 5-sd average distance of Uranus from the Sun is

#2872.5 X 10^6 km=2.8725 X 10^9#.

One light second distance in 5-sd is

#2.9979 X 10^5 km#

The answer is (distance/speed)

#=(2.8725 X 10^9)/ (2.9979 X 10^5 ) s#

#=9581.7 s#

#=2 h 39 m 42 s#, nearly