A point source of monochromatic light 'S' is kept at the centre of the bottom of a cylinder of radius `15.0 cm`. The cylinder contains water (refractive index 4//3) to a height of `7.0 cm`. Draw the ray diagram and calculate the area of water surface through which the light emerges in air.

A point source of monochromatic light 'S' is fept at the centre of the bottom of a cyclinder of radius 15.0 cm . The cyclinder contains water (refractive index 4//3 ) to a height of 7.0cm . Draw the ray diagramand caculate the area of water surface through which the light emerges in air.

A point source of monochromatic light .S. is kept at the centre Cof the bottom of a cylinder, Radius of circular base of the cylinder is 15.0 cm. The cylinder contains water (refractive index =(4)/(3) ) to a height of 7.0 cm (see figure) Find the area of water surface through which light emerges in air.

A point source of light is 80.0cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water.

A cylindrical container with internal radius of its base 10 cm, contains water up to a height of 7 cm. Find the area of the wet surface of the cylinder.

A liquid of refractive index 1.5 is poured into a cyclindrical jar of radius 20 cm upto a height of 20 cm. A small bulb at the centre of bottom glowing. Find area of the liquid surface through which the light of the bulb passes into air.

A liquid of refractive index 1.5 is poured into a cyclindrical jar of radius 20 cm upto a height of 20 cm. A small bulb at the centre of bottom glowing. Find area of the liquid surface through which the light of the bulb passes into air.

A point source of light is kept at a depth of 'h' in water of r.i 4/3. The radius of the circle at the surface of water through which light emits is

The optical path of a monochromatic light is same if it goes through 4.0 cm of glass or 4.5 cm of water. If the refractive index of glass is 1.53, the refractive index of the water is