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Results tagged with diffraction
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user 144045
Diffraction is defined as the bending or flaring of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle. This flaring is consistent with the spreading of wavelets in the Huygens construction. Diffraction occurs for waves of all types, not just light.
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Diffraction according to Huygens principle - struggling with the concept of diffraction bein...
However, that raises some questions:
The effect of diffraction is at its greatest when the slit is the exact length of the wavelength. … Why is the diffraction effect reduced but not completely eliminated if the slit is wider than the wavelength? …
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Diffraction of monochromatic light
Each wave front is made up of an infinite number of wavelets, and these wavelets interfere to produce the single slit diffraction pattern. … If this answer doesn't make sense to you then research single slit diffraction and Huygen's principle and it'll make more sense. …
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Why do reflection gratings work?
However, reflection gratings completely defy this law, and from light incident at a fixed angle comes a whole diffraction pattern - light reflected at a range of different angles. …
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Why are diffracted wave fronts drawn with curved edges in textbook diagrams, when according ...
However, in text books and educational websites the diffracted wave front is drawn as below, labelled as "Diffraction through a wide gap":
Source: http://www.bbc.co.uk/schools/gcsebitesize/science/ocr_gateway …
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Intensity of a grating pattern in the limit of infinite slits
$$I\propto \frac{\sin^2(N\delta)}{\sin^2(\delta)}$$
Where $N$ is the number of slits and $\delta$ contains the angle, wavelength and slit spacing dependence. In the limit as $\delta \to 0, I \to N^2$. …
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