Student Login

Home›Chapters›Wave Optics PYQs›YDSE: Film, Medium & Two Wavelengths›Question 55

MHT CET 2021 (24 Sep, Shift 1) · YDSE: Film, Medium & Two Wavelengths

YDSE: Film, Medium & Two Wavelengths question from MHT CET 2021 (24 Sep, Shift 1)

Q55MHT CET 2021 · 24 SEP · SHIFT 1Medium

YDSE: Film, Medium & Two Wavelengths

In Young's double slit experiment, in an interference pattern, a minimum is observed exactly in front of one slit. The distance between the two coherent sources is ' $d$ ' and ' $D$ ' is the distance between the source and screen. The possible wavelengths used are inversely proportional to

Show answer and solution

Answer: (b)

Path difference in front of a slit $= \dfrac{d^2}{2D} = \dfrac{(2n-1)\lambda}{2}$ .
$\lambda = \dfrac{d^2}{(2n-1)D}$ , inversely proportional to $D, 3D, 5D, \ldots$
So the answer is (b).

Report a mistake

More questions on YDSE: Film, Medium & Two Wavelengths

Two light waves having the same wavelength λ in vacuum are in phase initially. Then the…JEE Main 2020 (3 Sep, Shift 2)
In a double slit experiment, when light of wavelength 400 nm was used, the angular width…NEET 2019
In a double slit experiment, when a thin film of thickness t having refractive index μ…JEE Main 2019 (12 Apr, Shift 1)
The figure shows a Young's double slit experimental setup. It is observed that when a…JEE Main 2019 (9 Apr, Shift 1)
In Young's double slit experiment fifth dark fringe is formed opposite to one of the…MHT CET 2019 (3 May, Shift 1)
Consider a Young’s double slit experiment as shown in figure. What should be the slit…JEE Main 2019 (10 Jan, Shift 2)
In a Young's double slit experiment, the slits are placed 0.320 mm apart. Light of…JEE Main 2019 (9 Jan, Shift 2)
Young's double slit experiment is first performed in air and then in a medium other than…NEET 2017