Write the relation between angle of incidence and angle of emergence w...
When a prism is in the angle of minimum deviation position, the angle of incidence (the angle at which the incident ray enters the prism) and the angle of emergence (the angle at which the emergent ray exits the prism) are related by the formula:
angle of incidence + angle of emergence = angle of minimum deviation
The angle of minimum deviation is a characteristic of the prism and is determined by the refractive index of the material it is made of and the shape of its faces.
For example, if the angle of minimum deviation for a prism is 30 degrees, and the angle of incidence is 20 degrees, then the angle of emergence would be:
angle of incidence + angle of emergence = angle of minimum deviation
20 degrees + angle of emergence = 30 degrees
angle of emergence = 30 degrees - 20 degrees
angle of emergence = 10 degrees
So in this case, the angle of emergence would be 10 degrees.