question_answer

The monochromatic beam of light is incident at \[60{}^\circ \] on one face of an equilateral prism of refractive index n and emerges from the opposite face making an angle \[\theta \left( n \right)\] with the normal (see the figure). For \[n=\sqrt{3}\] the value of \[\theta \] is \[60{}^\circ \] and \[\frac{d\theta }{dn}=m.\] The value of m is  

Answer:

2