A series of experiments by Clinton Davisson and Lester Germer in the 1920s gave a clear indication of the wave nature of matter. The investigators scattered a relatively low energy electron beam from a nickel crystal. They found very strong reflections at certain angles that varied with the energy of the electron beam. The strong reflections were analogous to those observed in x-ray diffraction. The angles at which the intensity of the reflected beam peaks agreed with the Bragg condition if the electrons were assumed to have a wavelength given by the de Broglie formula. This was conclusive
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Physics, 21.06.2019 17:30
The particles of an ice cube at 0°c (represented by the blue circles) come in contact with the particles of juan’s hand at 37°c (represented by the orange circles). which diagram correctly represents the temperature of the two substances and the direction of heat flow?
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Physics, 22.06.2019 09:00
Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic
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Physics, 22.06.2019 12:30
An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.
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A series of experiments by Clinton Davisson and Lester Germer in the 1920s gave a clear indication o...
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