Question

what is the effect an angle of minimum deviation of a glass prism first held in air immperesed inside water?​

Answer 1

Explanation:

The angle of minimum deviation depends on the refractive index of the medium through which the light passes. Since the refractive index of prism glass which is submerged in water is less than the refractive index of the prism in air, there will be a decrease in the angle of minimum deviation.

Answer 2

The relative refractive index of a glass prism decreases when it is dipped in water. As a result, the minimum deviation angle will decrease.

Explanation:

The angle of deviation in a prism decreases as the angle of incidence increases up to a certain point. The angle of incidence at which the angle of deviation in a prism is the smallest is known as the prism's minimal deviation position, and the angle of deviation at which it is the smallest is known as the prism's minimum angle of deviation.

Refractive index of the glass prism is given by

μ= $sin(\frac{A+δ_{min} }{2} )\frac{2}{sin A}$

Hence if δ$_{min}$  increace refractive index increace