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General physics
Terms realting to physics that are not fit for other subcategories.
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General physics
radioactive decay constant
Physics; General physics
A specific constant for a particular isotope which is the ratio of the rate of nuclear disintegration per unit time to the total number of radioactive nuclei.
radioactive decay series
Physics; General physics
Series of decay reactions that begin with one radioactive nucleus that decays to a second nucleus that decays to a third nucleus and so on until a stable nucleus is reached.
radioactive decay law
Physics; General physics
The rate of disintegration of a radioactive substance is directly proportional to the number of undecayed nuclei.
rarefaction
Physics; General physics
A part of a longitudinal wave in which the density of the particles of the medium is less than the normal density.
