A ray incident on a glass prism undergoes minimum deviation when the

MariaGomez

2 months ago

The correct answer is D. incident angle is equal to the angle of emergence.
When light passes through a prism, it is refracted twice: once when entering and once when exiting. The total angle by which the light ray is turned is called the angle of deviation . For any given prism, there exists a specific orientation where this deviation is at its smallest possible value, known as the minimum deviation .