Wave Optics

Two polaroids$A\text{and}B$are placed in such a way that the pass-axis of polaroids are perpendicular to each other. Now, another polaroid $C$ is placed between $A\text{and}B$ bisecting angle between them. If intensity…

In a single slit diffraction pattern, a light of wavelength $6000\overset{o}{A}$ is used. The distance between the first and third minima in the diffraction pattern is found to be $3\mathrm{mm}$ when the screen isplaced…

In a double slit experiment shown in figure, when light of wavelength $400\mathrm{nm}$ is used, dark fringe is observed at $P$. If $D=0.2m$,the minimum distance between the slits $S_{1}$and $S_{2}$is…

In a single slit experiment, a parallel beam of green light of wavelength $550 \mathrm{~nm}$ passes through a slit of width $0.20 \mathrm{~mm}$. The transmitted light is collected on a screen $100 \mathrm{~cm}$ away.…

In Young's double slit experiment, two slits $S_{1}$and $S_{2}$ are $d$distance apart and the separation from slits to screen is $D$ (as shown in figure). Now if two transparent slabs of equal thickness $0.1\mathrm{mm}$…

When unpolarized light is incident at an angle of$60^{\circ}$on a transparent medium from air. The reflected ray is completely polarized. The angle of refraction in the medium is

If the measured angular separation between the second minimum to the left of the central maximum and the third minimum to the right of the central maximum is $30^{\circ}$ in a single slit diffraction pattern recorded…

Unpolarised light of intensity $32Wm^{-2}$passes through the combination of three polaroids such that the pass axis of the last polaroids is perpendicular to that of the pass axis of first polaroids. If intensity of…

The aperture diameter of a telescope is $5m$ . The separation between the moon and the earth is $4\times\,10^{5}km$ . With light of wavelength of $5500\AA$ , the minimum separation between objects on the surface of…

Given below are two statements : Statement I : If the Brewster's angle for the light propagating from air to glass is $\theta\,_{B}$, then Brewster's angle for the light propagating from glass to air is…

As shown in figures, three identical polaroids $P_{1}$, $P_{2}$ and $P_{3}$ are placed one after another. The pass axis of $P_{2}$ and $P_{3}$ are inclined at angle of $60º$ and $90º$ with respect to axis of $P_{1}$.…

As shown in the figure, in Young's double slit experiment, a thin plate of thickness $t=10\mathrm{\mu m}$and refractive index $\mu\,=1.2$is inserted infront of slit $S_{1}$. The experiment is conducted in air…