Wave Optics

In a YDSE, the light of wavelength $\lambda=5000 Ã$ is used, which emerges in phase from two slits a distance $\mathrm{d}=3 \times 10^{-7} \mathrm{~m}$ apart. Atransparent sheet of thickness $\mathrm{t}=1.5 \times…

In YDSE, monochromatic light falls on a screen 1.80 m from two slits separated by 2.08 mm . The first and second order bright fringes are separated by 0.553 mm . The wavelength of light used is

Young's double slit experiment is performed in a medium of refractive index of 1.33 . The maximum intensity is $I_0$. The intensity at a point on the screen, where path difference between the light coming out from slits…

A microwave of wavelength 2.0 cm falls normally on a slit of width 4.0 cm . The angular spread of the central maxima of the diffraction pattern obtained on a screen 1.5 m away from the slit, will be:

When a light ray incidents on the surface of a medium, the reflected ray is completely polarized. Then the angle between reflected and refracted rays is

The property of light which cannot be explained by Huygen's construction of wavefront is

A single slit of a width $a$ is illuminated by a monochromatic light of wavelength $600 \mathrm{~nm}$. The value of ' $a$ ' for which first minimum appears at $\theta$ $=30^{\circ}$ on the screen will be :

In a Young's double slit experiment, the intensities at two points, for the path difference $\frac{\lambda}{4}$ and $\frac{\lambda}{3}$ ($\lambda$ being the wavelength of light used) are $I_1$ and $I_2$ respectively. If…

The ratio of intensities at two points $\mathrm{P}$ and $\mathrm{Q}$ on the screen in a Young's double slit experiment where phase difference between two wave of same amplitude are $\frac{\pi}{3}$ and $\frac{\pi}{2}$,…

A thin sheet of glass $(\mu=1.5)$ of thickness 6 micron introduced in the path of one of the interfering beams in a double slit experiment shifts the central fringe to a position previously occupied by fifth bright…

Two monochromatic light waves are travelling with same frequency and constant phase difference. If both waves interfere, then

In Young's double-slit experiment, the distance between slits and screen is $2 m$ and distance between slits is $0\cdot 25 \text{mm}$. A light of wavelength $800 \text{nm}$ is used to find fringes on the screen. If the…