Question

do light travel in straight lines

Answer 1

Light, like everything else, moves at a constant velocity (same speed and, more importantly for this question, same direction) unless a force acts upon it (that is, it takes a force to accelerate it). Thus, in theory under no force, light would move in a straight line.

Answer 2

Answer:

Yes, light travels in a straight line.

Explanation:

Take a straight pipe, a curve pipe and a candle

Lit on the candle.

Try to see the candle with both the pipes.

U will observe light can be seen through the straight pipe.

This proves that light travels through a straight line.

Hope it helps you mate....