A parallel bean of light travelling in water (refractie index `=4/3`) is refracted by a spherical bubble of radius 2 mm situation in water. Assuming the light rays to be paraxial. Find the position of the image due to refraction at the first surface and the position of the final image

A hemispherical glass body of radius 10 cm and refractive index 1.5 is silvered on its curved surface . A small air bubble is 6 cm below the flat surface inside it along the axis. The position of the image of the air bubble made by the mirror is seen :

A ray of light travelling in water is incident on a glass plate immersed in it. When the angle of incident is 51^(@) the reflected ray is totally plane polarized. Find the refractive index of glass. Refractive index of water is 1.33.

An object is placed 21 cm in fron of a concave mirror of radis of curvature 20 cm.A glass slab of thicknes 3 cm and refractive index 1.5 is palced close to the mirror in the space between the object and the mirror. Find the position of the final image fromed. The distance of the nearer surface of the slab from the mirror is 10 cm.

A narrow parallel beam of light is incident on a transparent sphere of refractive index n if the beam finally gets focused at a point situated at a distance= 2xx("radius of sphere") form the center of the sphere then find n ?

A transparent thin film of uniform thickness and refractive index n_(1) =1.4 is coated on the convex spherical surface of radius R at one end of a long solid glass cylinder of refractive index n_(2) =1.5 , as shown in the figure. Rays of light parallel to the axis of the cylinder traversing through the film from air to glass get focused at distance f_(1) from the film, while rays of light traversing from glass to air get focused at distance f_(2) from the film, Then

An intially parallel cyclindrical beam travels in a medium of refractive index mu (I) = mu_(0) + mu_(2) I , where mu_(0) and mu_(2) are positive constants and I is intensity of light beam. The intensity of the beam is decreasing with increasing radius. Answer the following questions : The initial shape of the wavefront of the beam is

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

Light from a point source in air falls on a spherical glass surface (n = 1.5 and radius of curvature = 30 cm). The distance of the light source from the glass surface is 12 cm. At what position the image is formed