If space has a flat geometry,what will happen to two initially parallel flashlight beams as they traverse billions of light-years of space?
A) They will remain parallel.
B) They will gradually diverge (move apart)to a maximum separation,and then gradually converge and cross.
C) They will gradually converge (move together)and eventually cross.
D) They will gradually diverge (move apart).

Question

Quizplus · Accepted Answer

In a flat geometry, the geometry of space remains constant over large distances. This means that parallel lines will always remain parallel and will never meet or cross. Therefore, the two initially parallel flashlight beams will continue to travel parallel to each other and will never converge or diverge.

If Space Has a Flat Geometry,what Will Happen to Two