In Figure, a point object O is placed in air. A spherical boundary separates two media. Ab is the principall axis. The refractive index above AB is 1.6 and below AB is 2.0. The separation between the images formed due to refraction at a the spherical surface is

In the figure, a point object O is placed in air. A spherical boundry separates two media of radius of curvature 1.0 m. AB is principal axis. The separation between the images formed due to refraction at spherical surface is

A parallel narrow beam of light is incident on the surface of a transparent hemisphere of radius R and refractive index mu=1.5 as shown. The position of the image formed by refraction at the image formed by refraction at the spherical surface only as

A point object is placed in air at a distance of 40 cm from a concave refracting surface of refractive index 1.5. If the radius of curvature of the surface is 20 cm, then the position of the image is –

In the figure shown , a point object O is placed in air on the principal axis. The radius of curvature of the spherical surfaces is 60 cm. I is the final image formed after all reflections and refractions.

In Fig, find position of second image I_2 formed after two times refraction from two place surfaces AB and CD.

An extended object of size 2 cm is placed at a distance of 10 cm in air (n = 1) from pole, on the principal axis of a spherical curved surface. The medium on the other side of refracting surface has refractive index n = 2. Find the position, nature and size of image formed after single refraction through the curved surface.

A point mass is placed on the principal axis at 0 at a distance of 10cm from convex refracting surface of the pole.Find the image distance (in cms) from pole of refracting surface. (Radius of the spherical surface is R =30cm) n_(1) =1.5

Two refracting media are separated by a spherical interfaces as shown in the figure. AB is the principal axis, mu_1 and mu_2 are the refractive indices of medium of incidence and medium of refraction respectively. Then,

Refraction takes place at a convex spherical boundary separating glass-air medium. For the image to be real, the object distance (mu_(g)=3//2) should be // is