[Solved] A 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(n) 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 - - JEE (Advanced) 2015 Paper-2