Define pole of a spherical refracting surface.

An object is placed at a distance of 10 cm (in a medium of μ = 1) from the pole of a spherical refracting surface bounding a medium of μ = 1.5. If the image formed is virtual and at a distance of 40 cm, then the spherical surface is –

Spherical Refraction

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

Define power of a refracting surface. (Define the power of a lens).

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

If f_(1) and f_(2) represent the first and second focal lengths of a single spherical refracting surface, then

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

____________ is an optically transparent medium bounded by two spherical refracting surfaces or one plane and one spherical surface.

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.

A glass sphere of diameter 20 cm is constructed with a material of refractive index 1.5. A beam of light strikes the sphere and converges at a point 40 cm behind the pole of a spherical surface. Find the position of the image.