Question

Why does a light ray always travel in a straight line in a medium ?
Guys l was not satisfied with the goo_gle answer therefore l am asking if you know this answer then only give answer
NO SPAM ❌​

Answer 1

Answer:

Diffraction is the effect which causes light to change path when it meets obstacles. But as diffraction effect is very small light travels in straight line .

Check your Gmail now . I sent you message

Answer 2

Light travels in straight lines primarily due to the fact that light is a wave. Since diffraction is very small effect, light is generally assumed to travel in straight line .