Question

An object of a size of 2.4cm is kept perpendicular to the principal axis of a concave mirror. The distance of the object from the pole of the mirror is equal to the radius of the curvature of the mirror.The size of the image formed will be?

Answer 1

ray of monochromatic light is incident on one of the faces of an equilateral triangle prism of refracting angle A. Trace the path of ray passing through the prism. Hence derive an expression for the refractive index of material of the prism in terms of the angle of minimum deviation and its refracting. angle.