Chemistry, 12.06.2021 14:00 whereswoodruff
The second is defined as the time it takes for 9,192,631,770 wavelengths of a certain transition of the cesium 133 atom to pass a fixed point . What is the frequency of this electromagnetic radiantion and what is the wavelength?
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The second is defined as the time it takes for 9,192,631,770 wavelengths of a certain transition of...
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