<p>A ray of light suffers minimum deviation when incident on a prism having angle of the prism equal to 60&ordm;. The refractive index of the prism material is&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML" class="wrs_chemistry"><msqrt><mn>2</mn></msqrt></math>. The angle of incidence (in degrees) is__________</p>