There is a small air bubble at the centre of a solid glass sphere of radius 'r' and refractive index `mu`. What wil be the apparent distance of the bubble from the centre of the sphere, when viewed from outside?

There is a small black dot at the centre C of a solid glass sphere of refractive index mu . When seen from outside, the dot will appear to be located

A horizontal ray of light is incident on a solid glass sphere of radius R and refractive index mu . What is net deviation of the beam when it emerged from the other side of the sphere?

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 narrow parallel beam of light falls on a glass sphere of radius R and refractive index mu at normal incidence. The distance of the image from the outer edge is given by-

A small filament is at the centre of a hollow glass sphere of inner and outer radii 8 cm and 9 cm respectively. The refractive index of glass is 1.50. Calculate the position of the image of the filament when viewed from outside the sphere.

A small air bubble is inside a transparent cube of side length 24 cm and of refractive index 4/3 If the apparent distance air bubble from a face is 9 cm then its apparent distance from opposite face is

A mark is made on the surface of a glass sphere of diameter 10 cm and refractive index 1.5. It is viewed through the glass from a portion directly opposite. The distance of the image of the mark from the centre of the sphere will be

There is a sphere of radius R and refractive index mu . At what distance from the surface of sphere should an object be placed so that real image is formed at the same distance from the sphere ?