Question

what do you understand rectilinear propagation of light​

Answer 1

Answer:

Rectilinear propagation of light refers to the propensity of light to travel along a straight line without any interference in its trajectory. When light travels through a medium, say air or water, it follows a straight line. ... Another example of rectilinear propagation of light involves the formation of shadows.

Answer 2

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The Rectilinear Propagation of Light describes that Light travels in a Straight Line. A mirror changes the direction of Light that falls on it and it travels in a Straight line Path. Reflection of Light occurs when light bounces off a polished surface.