Q29. The refractive index of prism is $\mu = \sqrt { 3 }$ and the ratio of the angle of minimum deviation to the angle of prism is one. The value of angle of prism is $\_\_\_\_$ .
Q29. The refractive index of prism is $\mu = \sqrt { 3 }$ and the ratio of the angle of minimum deviation to the angle of prism is one. The value of angle of prism is $\_\_\_\_$ .