Central Maximum
The central maximum is the brightest region in a single slit diffraction pattern, appearing at the center of the screen. It’s formed due to constructive interference, where light waves traveling straight through the slit reinforce each other, resulting in a more intense central peak.
The formula for Central Maximum is:
sin θ = nλ/a
where,
- θ is the Angle from the Center to Maxima
- n is the Order of the Maxima (for central maximum, it is 1)
- λ is the Wavelength of the incident light
- a is the Width of the slit
Single Slit Diffraction
Single Slit Diffraction is a fundamental concept in wave optics that explains how light behaves as a wave when passing through a narrow slit. When coherent light (like a laser) goes through a single narrow slit, the waves spread out, and their interaction creates a pattern on a screen placed some distance away. This phenomenon, known as diffraction, leads to the formation of alternating bright and dark regions, showcasing the wave nature of light.
In this article, we’ll learn core concepts, types, and practical applications of Single Slit Diffraction, aiming to simplify and explore its patterns and formulas.
Table of Content
- What is Single Slit Diffraction?
- Central Maximum
- Path Difference
- Minima Position
- Intensity Distribution Curve (Pattern)
- Single Slit Diffraction Formula
Diffraction is defined as the phenomenon in which light bends around the corners of an obstacle whose size is comparable to the wavelength of the light
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