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प्रश्न
What is a neutrino?
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उत्तर
Neutrino: A neutrino is zero rest mass and charge less elementary particle. They have a very weak interaction with matter. They possess energy and momentum.
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संबंधित प्रश्न
Name a material which is used in making control rods in a nuclear reactor.
Two nuclei have mass numbers in the ratio 1: 2. What is the ratio of their nuclear densities?
The atomic mass of Uranium `""_92^238"U"` is 238.0508 u, while that of Thorium `""_90^234"Th"` is 234.0436u, and that of Helium `""_2^4"He"` "is 4.0026u. Alpha decay converts `""_92^238"U"` into `""_92^234"Th"` as, shown below:
`""_92^238"U" -> ( ""_90^234"Th" + ""_2^4"He" + "Energy" )`
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