A thin prism of glass is placed in air and water respectively. If `n_(0) = (3)/(2)` and `n_(w) = (4)/(3)`, then the ratio of deviation produced by the prism for a small angle of incidence when placed in air and water separately is:

The angular dispersion produced by a small angle prism placed in air

When a glass prism is placed inside water, its dispersive power______

A prism has refractive index sqrt((3)/(2)) and refractive angle 90^@ . Find the minimum deviation produced by prism

A prism has a refracting angle of 60^@ . When placed in the position of minimumm deviation, it produces a deviation of 30°. The angle of incidence is,

Refractiven index of glass is 3/2 and that of water is 4/3 w.r.t. air. Calculate the ratio of focal length of a lens made of the glass when placed in water and air.

The deviation produced by a thin glass prism placed in air, when immersed in water is [Given ""_(a)mu_(g) = 3//2 and ""_(a)mu_(w) = 4//3 ]

A hollow prism is filled with water and placed in air. It will deviate the incident rays

In an achromatic combination of two prisms, the ratio of the mean deviations produced by V the two prisms is 2:3, the ratio of their dispersive power is

(a) Find the refractive index of glass with respect to water. Given : mu_(gw)=(3)/(2) "and" mu_(w)=(4)/(3) . (b) A source of yellow light placed in air is observed by a person swimming under water. If the wavelength of yellow light in air is 6000 Å , then find its speed, wavelength and colour as observed by the person.