Discuss refraction from denser to rerer medium at a convex spherical refracting surface.

Discuss briefly refraction from rarer to denser medium at a concave spherical refracting surface.

Spherical Refraction

Prove that (-mu_1)/(u)+(mu_2)/(v) = (mu_2 - mu_1)/( R) when refraction occurs from rarer to denser medium at a concave spherical refracting surface.

The relation governing refraction of light from rarer to denser medium at a spherical refracting surface is

In the above question, the ralation remains the same whether (A) image is real or virtual (B) refracting surface is convex or cancave (C )light is going from rarer to denser medium or from denser to rarer medium (D) object is close to far off from the refracting surface Choose the wrong statement

A small point objects is placed in air at a distance of 60 cm from a convex spherical refractive surface of mu = 1.5 . If radius of curvature of spherical surface is 25 m , calculate the position of the image and the power of the refracting surface.

Spherical surface refraction

Let the refractive index of a denser medium with respect to a rarer medium be n_(12) and its critical angle be theta_(c) . At an angle of incidence A when light is travelling from denser medium to rarer medium, a part of the light is reflected and the rest is refracted and the angle between reflected and refracted rays is 90^(@) , Angle A given by -

Refraction at spherical surfaces