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प्रश्न
Define the term radioactivity.
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उत्तर
The phenomenon of spontaneous disintegration of an unstable nucleus of a naturally occurring isotope accompanied by emission of active radiations, α particles, β particles and γ radiations is called radioactivity.
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संबंधित प्रश्न
In a cathode ray tube, what is the function of anode?
State the energy conversion taking place in a cathode ray tube
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Unit of radioactivity is _______
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The half-life of a radioactive nuclide is 100 hours. The fraction of original activity that will remain after 150 hours would be ______.
