CUET Preparation Today
A glass prism of angle 60° has an angle of minimum deviation of 30° for a given colour of light. The refractive index of glass for that colour of light is : |
1.414 1.892 2.313 2.568 |
1.414 |
$ \mu = \frac{sin(\frac{A+\delta_m}{2})}{sin\frac{A}{2}} = \frac{sin45^o}{sin30^o}=\sqrt{2}=1.414$ |
