Embibe Experts Solutions for Chapter: Wave Optics, Exercise 1: Exercise-1

In Young's double slit experiment, one of the slits is so painted that intensity of light emitted from it is half of that of the light emitted from other slit. Then

In YDSE, the source placed symmetrically with respect to the slit is now moved parallel to the plane of the slits it is closer to the upper slit, as shown. Then,

In a YDSE experiment if a slab whose refractive index can be varied is placed in front of one of the slits then the variation of resultant intensity at mid-point of screen with $\text{'}\mu \text{'}$ will be best represented by $(\mu \ge 1),$ [Assume slits of equal width and there is no absorption by slab]

A ray of light is incident on a thin film. As shown in figure $M, N$ are two reflected rays and $P,Q$ are two transmitted rays, Rays $N$ and $Q$ undergo a phase change of $\pi .$ Correct ordering of the refracting indices is :

Two point sources separated by $d=5 \mathrm{\mu m}$ emit light of wavelength $\lambda =2 \mathrm{\mu m}$ in phase. A circular wire of radius $20 \mathrm{\mu m}$ is placed around the source as shown in figure.

Two coherent narrow slits emitting light of wavelength $\lambda$ in the same phase are placed parallel to each other at a small separation of $3\lambda .$ The light is collected on a screen $S$ which is placed at a distance $D(>>\lambda )$ from the slits. The smallest distance $x$ such that the $P$ is a maxima.

In the YDSE shown the two slits are covered with thin sheets having thickness $t \text{\&} 2t$ and refractive index $2\mu$ and $\mu .$ Find the position $\left(y\right)$ of central maxima

Light of wavelength $650 \mathrm{nm}$ is incident normally upon a glass plate. The glass plate rests on top of a second plate so that they touch at one end and are separated by $0.0325 \mathrm{mm}$ at the other end as shown in the figure.

Which range of values contains the horizontal separation between adjacent bright fringes?