Home
Class 12
PHYSICS
In the experiment of diffraction at a si...

In the experiment of diffraction at a single slit, if the slit width is decreased, the wdith of the central maximum

A

Increases in both Fresnel and Fraunhofer diffraction

B

Decreases both in Fresnal and Fraunhoffer diffraction

C

Increases in Fresnel diffraction but decreases in Fraunhoffer diffraction

D

Decreases in Fresnel diffraction but increases is Fraunhoffer diffraction

Text Solution

Verified by Experts

The correct Answer is:
A
Angular width = `(2lambda)/(a)`
Promotional Banner

Similar Questions

Explore conceptually related problems

Light of wavelength lambda is incident on a single sht of width. 'a' and the distance between slit and screen is 'a. In diffraction pattern, if slit width is equal to the width of the central maximum then 'O is equal to

If we observe the single slit Fraunhofer diffraction with wavelength lambda and slit width d, the width of the central maxima is 2theta . On decreasing the slit width for the same lambda

In a single slit diffraction pattern obtained on a screen, if the slit width is gradually decreased, which of the following statement is/are correct:

In single slit diffraction pattern :

In a single slit diffraction of light of wavelength lambda by a slit of width e, the size of the central maximum on a screen at a distance b is