Question

why is rectilinear propagation of light observed even it has wave nature

Answer 1

Answer:

It depends on the situation. light is both a wave and ray.

In some cases it is treated only as rays (photons)

And in others as waves....

So when its treated as rays we use rectilinear property .....

Explanation:

Answer 2

The rectilinear propagation tells about the nature or how the light travel.

• The basic property of the rectilinear propagation tells about that light travels in straight line.
• This also shows the light takes the shortest path which means it travels faster than any thing.
• This property is experimentally proven.
• As after it there is discovery of nature of light that shows the wave as well as the particle nature because of it we are able to discover the light further characteristics.