A layer of oil 3 cm thick is floating on a layer of coloured water 5 cm thick. Refractive index of coloured water is `5//3` and the apparent depth of the two liquids appears to be `36//7`cm. Find the refractive index of oil.

A layer of oil 3 cm thick is flowing on a layer of coloured wtater 5 cm thick. Refractive index of coloured water is (5)/(3) and the apparent depth of the two liquids appears to be (36)/(7) cm . What is the refractive index of oil?

The refractive index of glass with respect to water is (9//8) . Refractive index of water with respect to air is (4//3) . Find refractive index of glass with air.

Number of light waves of some frequency in 8 cm thickness of glass is same as number of light waves of same frequency in 9 cm thickness of water. If refractive index of water is 4/3, then what should be the refractive index of glass?

Find the refractive index of water with respect to glass if the refractive index of water is 4/3 and the refractive index of glass is 3/2.

A pond of depth 20 cm is filled with water of refractive index 4//3 . Calculate apparent depth of the tank when viewed normally.

Refractive index of glass with respect to water is (9/8). Refractive index of glass with respect to air is (3/2). Find the refractive index of water with respect to air

Refractive index of glass with respect to water is (9//8) . Refractive index of glass with respect to air is (3//2) . find the refractive index of water with respect to air .