Angle Of Minimum Deviation Of Glass Prism. The angle of minimum deviation is given by δm n21 - 2 A If voilet light light is replaced by red light its refractive index decreses and angle of minimum deviation. If the prism is placed in water μ 133 predict.
For a glass prism mu 3 the angle of minimum deviation is equal to the angle of the prism. If it emerges through the adjacent face AC calculate the right angle of emergence e. Under minimum deviation condition light ray travels inside prism parallel to the base of the prism and the angle of incidence angle of emergence.
At the minimum deviation angle the angle of incidence and the angle of emergence of the ray are identical.
As you can see from the above figure this will occur only if the light ray inside the prism passes parallel to the base of the prism you can prove it from the prism equation. The angle of the prism is. Angle e denotes angle of emergence. What is the refractive index of the prism.
