Light Diffraction: Physics Basics Explained

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Light diffraction involves the bending and spreading of light waves when they encounter an obstacle or slit, resulting in interference patterns. The brightness of colors in these patterns is indeed proportional to their amplitude, with the center typically appearing the brightest due to constructive interference. Even with a single slit, multiple light beams can create interference, leading to a series of bright and dark fringes on a screen. The behavior of light diffraction differs from that of water waves, primarily due to the distinct properties of electromagnetic waves compared to mechanical waves. Understanding these principles is crucial for grasping the fundamentals of wave behavior in physics.
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http://www.geocities.com/thescience...ffraction.html]
Refer to this web site, please.
The brightness of the colour is proportional to its amplitude?
I can understand why the middle of the screen is the brightest, but in my mind, I think there should be only one area which is bright for a single-slit.
Is that light has many beams and able to create interference for even only a single-slit?
The diffraction of a light beam is really different from that of a water wave, isn't it?
 
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Yeah, fraction is spelled wrong, and there are too many "..."
 

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