Question : The phenomenon of deviation of light rays from their original path when they pass from one medium to another is called ______.
Option 1: reflection
Option 2: refraction
Option 3: obstruction
Option 4: diffraction
Correct Answer: refraction
Solution : The correct answer is refraction .
The difference in the media's refractive index accordingly the speed fluctuations cause the refraction phenomena. A direction change results from this change in speed. Refraction is when a ray bends away from its path of least resistance when it moves from one medium to another because of the disparity in the refractive indices or optical densities of the two media. Deviation refers to this bending.