A paraxial beam is incident on a glass (n=1.5) hemisphere of radius R=6 cm in air as shown. The distance of point convergence F from the plane surface of hemisphere is :-

When unpolarised light beam is incident from air onto glass ( n=1.5 ) at the polarising angle

When unpolarised light beam is incident from air onto glass ( n=1.5 ) at the polarising angle

When unpolarised light beam is incident from air onto glass (n = 1.5) at the polarising angle

When unpolarised light beam is incident from air onto glass (n = 1.5) at the polarising angle

When unpolarised light beam is incident from air onto glass ( n=1.5 ) at the polarising angle

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 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

Light from a point source in air falls on a spherical glass surface (n = 1.5) of radius of curvature 20 cm. The distance of the light source form the glass surface is 100 cm. Find the position of the image.