Question

make a note of propagtion of
light.​

Answer 1

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. However, the path only changes in case there is a shift in the medium.

Answer 2

Answer:

Propagation of light refers to the manner in which an electromagnetic wave transfer it's energy from one point to another. Three main processes generally occur when light passes between boundaries from one medium to another: Transmission. Reflection.