Ray Optics and ...

An air bubble is inside water. The refractive index of water is $$4/3$$. At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the bubble:

A ray of light is incident on one face of prism with refracting angle $$A(< 90^\circ)$$. The incident ray is normal to the other face of the prism. If C is the critical angle for prism air interface, then the ray will emerge from this faces only if

Two concave lens and a convex of radii 3 cm and 2 cm are joined. What is the refractive index of the combination ?

An object has an image thrice of its original size when kept at
$$8 cm$$ and $$ 16 cm$$ from a convex lens focal length of the lens is 

Three thin prisms are combined as shown in figure. The refractive indices of the crown glass for red, yellow and violet rays are $$\mu_r, $$ $$\mu_y$$ and $$\mu_v$$ respectively and those for the flint glass are $$\mu^{ '}_{r}$$, $$\mu^{'}_{y}$$ and $$\mu^{'}_{v}$$ respectively. Find the $$\dfrac {A'}{A}$$ for which, there is no net angular dispersion.

A light ray is incident a glass sphere at an angle of incidence of $$45^o$$ as shown in figure. Find the total deviation suffered by ray of two successive reflection.

A ray of light strikes a cubical slab as shown in the figure. Then the geometrical path length traveled by the light in the slab will be:

A rectangle tank $$6m$$ deep is full of water . By how much does the bottom of the tank appear to be raised when viewed from above. Given $$(\mu_{water} = \frac{4}{3})$$

 If $$\mu ,$$ represents the refractive index when a light ray goes from medium i to j, then $$_2{\mu _1}{\text{ x}}{{\text{ }}_3}{\mu _2}{\text{ x}}{{\text{ }}_4}{\mu _3}$$   is equal to 

When a picture drawn on paper is seen through a slab of a transparent materials of thickness $$5cm$$, it appear to be raised by $$1.5 cm$$. Critical angle at the boundary of this transparent material and air is