Question

What do you means
by rectilinear
propgation of light.​

Answer 1

Answer:

light travels in straight line

Answer 2

Answer:

Hey mate here is your answer...

The rectilinear propagation of light means that light travels in straight lines as a wave.

This can be observed in the wall defined shadows form when an object blocks a source of light source through the use of a pinhole camera...

Explanation:

I hope it will help you....

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Thanks for the question......