Central Maximum
The maxima are located between the minima, and the width of the central maximum is equal to the distance between the 1st order minima on both sides of the screen.
The position of the minima determined by y (as measured from the screen’s centre) is,
tanθ ≈ θ ≈ y ⁄ D
For small θ,
sinθ ≈ θ
λ = a sinθ ≈ a θ
Angular width,
θ = y/D = λa
Central maximum,
y = λ D a
The centre maximum’s width is just twice this amount.
Width of central maximum = 2λ D a
Angular width of central maximum = 2θ = 2λ a
Diffraction of light
Diffraction is a phenomenon shown by light. When the wave of light interacts with the particle in the atmosphere it bends at the corners and scatters in the area to illuminate the whole area, this phenomenon is called the Diffraction of light. It is a property of light which is used to explain various phenomena observed in our daily life.
Let’s learn about diffraction in detail in this article.
Table of Content
- What is Diffraction?
- Diffraction Examples
- Types of Diffraction
- Single Slit Diffraction
- Single Slit Diffraction Formula
- Central Maximum
- Resolving Power
- Rayleigh’s Criterion
- What Is the Difference Between Diffraction and Scattering?
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