Ray Optics and ...

A glass prism of refractive index $$1.5$$ is placed in water of refractive index $$1.33$$. The minimum value of the angle of the prism so that it will not be possible to have any emergent ray is :

A double convex lens, made of a material of refractive index $$\mu _{1}$$ , is placed inside two liquids of refractive indices $$\mu _{2}$$  and $$\mu _{3}$$ , where $$\mu _{2}>\mu _{1}>\mu _{3}$$. A wide , parallel beam of light is incident on the lens from the left .The lens will give rise to

Two equi-convex lenses each of focal lengths 20 cm and refractive index 1.5 are placed in contact and space between them is filled with water of refractive index 4/3. The combination works as :

A ray incident at a point at an angle of incidence $$60$$$$^{\circ}$$ enters a glass sphere of $$\mu =\sqrt{3}$$ and is reflected and refracted at the further surface of the sphere. The angle between the reflected and refracted rays at this surface is :

The difference in the number of wavelengths, when yellow light propagates through air and vacuum columns of the same thickness is one. The thickness of the air column is :

In the diagram shown

In the case of refraction of light :
a) Frequency changes
b) Speed changes
c) Wavelength changes

ACB is a right-angled glass prism with refractive index 1.5. Angle A, B, C are 60$$^{\circ}$$,30 $$^{\circ}$$and 90$$^{\circ}$$ respectively. A thin layer of liquid is on the AB. For a ray of light which is incident normally on AC to ;be totally reflected at AB, the refractive index of the liquid on AB should be 

A light ray is incident perpendicularly to one face of  a 90$$^{\circ}$$ prism and is totally internally reflected at the glass-air interface. If the angle of reflection is 45$$^{\circ}$$, we conclude that the refractive index $$n$$ :

In the figure, light is incident on the thin lens as shown. The radius of curvature for both the surface is R. The focal length of this system is