Consider two spaceships, each traveling at 0.500c in a straight line. Ship A is moving directly away from the sun and ship B is approaching the sun. The science officers on each ship measure the velocity of light coming from the sun. What do they measure for this velocity?
A) On both ships it is measured to be greater than c.
B) Ship B measures it as less than c, and ship A measures it as greater than c.
C) On both ships it is measured to be less than c.
D) On both ships it is measured to be exactly c.
E) Ship A measures it as less than c, and ship B measures it as greater than c.

Question

Quizplus · Accepted Answer

According to the theory of relativity, the speed of light in a vacuum is always measured to be the same, c, regardless of the relative motion of the source and the observer. This means that both ships will measure the velocity of light coming from the sun as exactly c.

Consider Two Spaceships, Each Traveling at 0