Question

Explain why we draw straight lines to show rays of light.

Answer 1

Answer:

In a dusty atmosphere it is sometimes possible to see light travelling and it does appear to be moving in a straight line. The fact that light travels can be demonstrated by putting an object in its path. ... As light does appear to travel in straight lines then light is usually modelled as straight lines in drawings.

Answer 2

Answer:

because light travel in starght line only so....we draw straight lines to show rays of light

hope it helps you friend