Ray Optics and ...

If the light moving in a straight line bends by small but fixed angle while entering in different medium , it may be a case of :

A ray of light incident normally on the first face of an equilateral prism undergoes total internal reflection at the second face if refractive index $$ \mu $$ is

A beam of light consisting of red, green, and blue colors is incident on a right-angled prism. The refractive indices of the material of the prism for the above red, green, and blue wavelengths are 1.39, 1.44, and 1.47, respectively. The prism will

A ray of light enters a spherical drop of water of refractive index $$\mu$$ as shown in fig. Select the correct statement(s).

A fish is looking at a $$1.0m$$ high plant of the edge of the pond. Will the plant appear shorter or taller than its actual height, to the fish 

The refractive index of a prism is $$2$$. The prism can have a maximum refracting angle of

A ray of light enters a rectangular glass slab of refractive index $$\sqrt {3}$$ at an angle of incidence $$60^{\circ}$$. It travels a distance of $$5\ cm$$ inside the slab and emerges out of the slab. The perpendicular distance between the incident and the emergent rays is

A light ray hits the pole of a thin biconvex lens as shown in fig. The angle made by the emergent ray with the optic axis will be approximately

A given ray of light suffers minimum deviation in an equilateral prism $$P$$. Additional prism $$Q$$ and $$R$$ of identical shape and of the same material as $$P$$ are now added as shown in the figure. The ray will now suffer.

A coin is placed at the bottom of a beaker containing water (refractive index $$= 4/3$$) to a depth of $$12 cm$$. By what height the coin appears to be raised when seen from vertically above?