A slab of a material of refractive index 2 shown in fig. has a curved surface APB of radius of curvature 10 cm and a plane surface CD. On the left of APB is air and on the right CD is water with refractive indices as given in the figure. An object O is placed at a distance of 15 cm from the pole P as shown. The distance of the final image of O from P, as viewed from the left is......

A slab of a material of refractive index 2 shown in the figure, has a curved surface APB of radius of curvature 10cm and a plane surface CD. On the left oa APB is air and on the right of CD is water with refractive indices as given in the figure. An object O is placed at a distance of 15cm from the pole P as shown. The distance of the final image of O from P, as viewed from the left is __________________ cm.

In a medium of refractive index 1.6 and having a convex surface has a point object in it at a distance of 12 cm from the pole. The radius of curvature is 6 cm. Locate the image as seen from air

A double convex spherical glass has refractive index 1.5 and both radius of curvature 30 cm. A point object is placed at a distance of 120 cm from the spherical glass. What will be the position of the image formed ?

An image is formed at a distance of 100 cm from the glass surface with refractive index 1.5, when a point object is placed in the air at a distance of 100 cm from the glass surface. The radius of curvature is of the surface is

A denser medium of refractive index 1.5 has a concave surface of radius of curvature 12 cm. An object is situated in the denser medium at a distance of 9 cm from the pole. Locate the image due to refraction in air.

The radius of curvature of convex surface of piano convex lens is 10 cm and its focal length is 30 cm, then the refractive index of the material of the lens is

A point object is placed at the center of a glass sphere of radius 6cm and refractive index 1.5. The distance of virtual image from the surface is

A point object is placed at the centre of a glass sphere of radius 6cm and refractive index 1.5. The distance of virtual image from the surface is

A concave spherical surface of radius of curvature 100 cm separates two media of refractive indices 1.50 and (4)/(3) . An object is kept in the first medium at a distance of 30 cm from the surface. Calculate the position of the image.