Question

is light travel in straight line? how you prove?​

Answer 1

Answer:

Light Travels Along a Straight Line

Light travels at a speed of 186,000 miles per second. You must have observed that in your house that whenever a beam of light enters a dark room through a tiny hole in the window, the lightwave always travels in a straight line.

Answer 2

Actually light doesn't always travel in straight line you'll know it in higher classes, I think you're still in elementary school