A sunshine recorder globe of `30 cm` diameter is made of glass of `mu = 1.5`. A ray enters the globe parallel to its axis. Find the position from the centre of the sphere, where the ray crosses the axis.

A glass hemisphere of radius 10 cm and mu=1.5 is silvered over its curved surface. There is an air bubble in the glass 5 cms from the plane surface along the axis. Find the position of the images of this bubble seen by observer looking along the axis into the flat surface of the atmosphere.

A glass hemisphere of radius 10 cm and mu=1.5 is silvered over its curved surface. There is an air bubble in the glass 5 cms from the plane surface along the axis. Find the position of the images of this bubble seen by observer looking along the axis into the flat surface of the atmosphere.

An equilateral triangular prism is made of glass (mu = 1.5) . A ray of light is incident normally on one of the faces. The angle between the incident and emergent ray is

An equilateral triangular prism is made of glass (mu = 1.5) . A ray of light is incident normally on one of the faces. The angle between the incident and emergent ray is

A sphere of glass (mu = 1.5) is of 20 cm diameter. A parallel beam enters it from one side. Where will it get focussed on the other side ?

An object is at a distance of d=2.5 cm from the surface of a glass sphere with a radius R=10 cm. Find the position of the final image produced by the sphere. The refractive index of glass is mu_ = 1.5.

A spherical convex surface of radius of curvature 20 cm, made of glass (mu=1.5) is placed in air. Find the positon of the image formed, if a point object is placed at 30 cm in front of the convex surface on the principal axis.