Embibe Experts Solutions for Chapter: Ray Optics, Exercise 1: AIPMT - 4th May 2014

A light ray falls on a glass surface of refractive index $\sqrt{3}$, at an angle $60°$. The angle between the refracted and reflected rays would be:

A biconvex lens has radii of curvature $20 \mathrm{cm}$ each. If the refractive index of the material of the lens is $1.5$, the power of the lens is:

Two transparent media $\mathrm{A}$ and $\mathrm{B}$ are separated by a plane boundary. The speed of light in those media are $1.5\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}$ and $2.0\times {10}^8 \mathrm{m} {\mathrm{s}}^{-1}$, respectively. The critical angle for a ray of light for these two media is:

A convex lens $A$ of focal length $20 \mathrm{cm}$ and a concave lens $B$ of focal length $5 \mathrm{cm}$ are kept along the same axis with a distance $d$ between them. If a parallel beam of light falling on $A$ leaves $B$ as a parallel beam, then the distance $d$ in $\mathrm{cm}$ will be :

A lens of large focal length and large aperture is best suited as an objective of an astronomical telescope since:

Find the value of the angle of emergence from the prism. Refractive index of the glass is $\sqrt{3}$.

A point object is placed at a distance of $60 \mathrm{cm}$ from a convex lens of focal length $30 \mathrm{cm}$. If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of $40 \mathrm{cm}$ from it, the final image would be formed at a distance of :

The power of a biconvex lens is $10$ dioptre and the radius of curvature of each surface is $10 \mathrm{cm}.$ Then the refractive index of the material of the lens is,