Young's Double Slit Experiment

IMPORTANT

Young's Double Slit Experiment: Overview

This topic teaches us the interference of light through a double slit with the help of Young’s double slit experiment. We will also study the interference pattern, the formation of fringes and the expression for the fringe-width.

Important Questions on Young's Double Slit Experiment

HARD
IMPORTANT

In Young's double-slit experiment, the distance between slits is d = 0.25 cm and the distance of the screen D = 120 cm from the slits. If the wavelength of light used is λ=6000 A and I0 is the intensity of central maximum, then the minimum distance of the point from the centre, where the intensity is I02 is k×10-6 m. What is the value of k?

HARD
IMPORTANT

In Young's double-slit experiment, the separation between the slits is d=0.25 cm and the distance of the screen from the slits is D=100 cm. When the wavelength of light used in the experiment is λ=6000 Å, the intensity at a distance x=4×10-5 m from the central maximum is pqI0, where I0 is the intensity of central maxima and p and q are the smallest integers. What is the value of p+q?

MEDIUM
IMPORTANT

Thin-film interference is the phenomenon that is a result of light wave being reflected off two surfaces that are at a distance comparable to its _____.

MEDIUM
IMPORTANT

Thin-film interference is the phenomenon that is a result of lightwave being reflected off two surfaces that are at a distance comparable to its wavelength.

MEDIUM
IMPORTANT

What is Thin Film Interference?

MEDIUM
IMPORTANT

A thin film of thickness t and index of refraction 1.33 coats a glass with index of refraction 1.50. What is the least thickness/that will strongly reflect light with wavelength 600 nm normal incidence?

MEDIUM
IMPORTANT

 White light produce _____.

MEDIUM
IMPORTANT

White light produce

MEDIUM
IMPORTANT

White light produce interference.This statement is true or false.

MEDIUM
IMPORTANT

Can white light produce interference? What is nature?

MEDIUM
IMPORTANT

What is the importance of slits in Young's double slit experiment?

EASY
IMPORTANT

A Young's double-slit experiment is performed with bi-chromatic light (5500  and 6000 ) for d=2 mm and D=1 m. The distance of the first complete maxima from the central maxima on the screen is x mm. The value of x correct to one decimal is,

HARD
IMPORTANT

In Young's double slit experiment, the slits are 2 mm apart and are illuminated by photons of two wavelengths 750 nm and 950 nm. At what minimum distance from the common central bright fringe on the screen  2 m from the slit will a bright fringe from one interference pattern coincide with a bright fringe from the other?

MEDIUM
IMPORTANT

Is there any difference between colour light obtained from a prism and colours of soap bubble?

HARD
IMPORTANT

Does diffraction take place at  the Young's double slit?

HARD
IMPORTANT

Obtain equation for constructive and destructive interference for transmitted and reflected waves in thin films.

HARD
IMPORTANT

Obtain the equation for the bandwidth in the Young's double slit experiment.

HARD
IMPORTANT

What is bandwidth of interference pattern? 

HARD
IMPORTANT

How do source and image behaves as coherent sources?

MEDIUM
IMPORTANT

How does wavefront division provide coherent sources?