Two identical thin isosceles prism of refracting angle 'A' and refractive index $\mu$ are placed their bases touching each other. Two parallel rays of light are incident on this system as shown The distance of the point where the rays converge from the prism is:

Q. There are two isosceles prisms of prism angle $={\left(\frac{1.8}{\pi }\right)}^{\circ }$ and refractive index $1.5$ which are placed with their bases touching each other. This system can act as a converging lens on which parallel rays are incident having distance $1\text{cm}$ from the line shown in figure. What will be distance of $F$ from base focal length (in meter) on the system ?

Q.

A ray of light incident parallel to the base PQ of an isosceles right-angled triangular prism PQR suffers two successive total internal reflections at the faces PQ and QR before emerging reversed in direction as shown

If the refractive index of the material of the prism is $\mu$, then

Q. Assertion :Angle of deviation depends on the angle of prism. Reason: For thin prism $\delta =(\mu -1)A$ where $\delta =$ angle of deviation, $\mu =$ refractive index, $A=$angle of prism

Q. Two prisms of prism angles A and A' are placed in contact with each other with second parts upside down. the refractive indices for violet and red colors for their materials are $\mu =1.7$,$\mu =1.751$ and $\mu =1.758$, $\mu =1.754$. a white light ray when made to fall upon combination from one side emerges from the other side such that the constituents color rays are parallel t each other. If A=$5^{\circ }$, then A'=

Q. Light rays from a source are incident on a glass prism of index of refraction $\mu$ and angle of prism $\alpha$. At near normal incidence, the angle of deviation of the emerging rays is