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never try to apply both particle and wave nature of the photons at once. because in dual nature, photons 'sometimes' show wave nature (expecially in travelling ie. propogation) , and other times particle nature(when interacting with other particles). not both 'simultaneously'. and in your question, due to wave nature ,diffraction is observed because,of ...

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The edge provides a boundary condition that the EM field must satisfy. The total EM field is "aware" of the boundary. "Photons", being quantized excitations of the EM field, are created (emitted) and destroyed (hit a screen) only where the EM field exists. If you are trying to think of photons as particles, forget it. You'll end up with all sorts of ...

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Your window is made of patterned glass, with regular changes in thickness. This is designed to diffuse light in order to prevent people outside from seeing what's inside (or you inside from seeing out; I don't know what your neighborhood is like). In your case, the patterns are extremely regular, so that each incoming beam of light will get spread into a ...

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The main requirements for choosing a target for x-ray generation is that, the material has to be metallic, have high melting point as a huge amount of heat is generated during the operation. So, the number of materials are limited. Some of the commonly used materials are Molybdenum, tungsten, Rhodium. kα lines are the strongest among the two.

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The intensity of the light in the diffraction pattern from a double slit is given by: $$I(\theta) = \cos^2\left(\frac{\pi d \sin\theta}{\lambda}\right) \tag{1}$$ We get maxima when the $\cos$ on the right side of the equation is $\pm 1$, and this happens when: $$\frac{\pi d \sin\theta}{\lambda} = \pi n$$ for the integer $n = 0, \pm 1, \pm 2$ and so ...

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This is one of the classic examples where the electromagnetic theory of light fails to answer. When the slitwidth is less than the wavelength the above equation is no more valid. Actually when the slitwidth is so small the probability of light to pass through the slit becomes vanishingly zero.

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