This is called diffraction (also interference, if there is more than one slit), and is the result of the Huygens-Fresnel principle. The basic idea is that from ANY point in space where a wave (such as light) gets, a new wave goes out in all directions. The final result, in this case, is the diffraction pattern.
Diffraction
They both cross the boundary from one medium to another.
The Photoelectric Effect and the Compton effect, both of these effects are explained by Photons.
This is not exactly easy to understand. It can be explained by the fact that waves move slower in certain media - combined with the Huygens-Fresnel principle.
Bevan B. Baker has written: 'The mathematical theory of Huygens' principle' -- subject(s): Diffraction, Wave theory of Light
This is called diffraction (also interference, if there is more than one slit), and is the result of the Huygens-Fresnel principle. The basic idea is that from ANY point in space where a wave (such as light) gets, a new wave goes out in all directions. The final result, in this case, is the diffraction pattern.
Electron diffraction.
Diffraction
The idea is that, due to the small wavelength of X-rays, atoms can serve as a diffraction grid - causing diffraction patterns. (If you don't know about diffraction, I suggest you search in the questions for "diffraction", or ask a separate question for diffraction.) Crystals are good for this, because of their regular structure.
Explain the workin principle of uln and its abbreviation
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The Brenoulli's Principle.
1. Explain the working principle of a milling machine?
They both cross the boundary from one medium to another.
archimedes' principle
The Photoelectric Effect and the Compton effect, both of these effects are explained by Photons.