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Explain how the laws of conservation of energy and conservation of momentum were used to predict...

Explain how the laws of conservation of energy and conservation of momentum were used to predict the existence and properties of the neutrino.

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Answer #1

In 1930 Wolfgang Pauli postulated neutrino to explain the concept of energy and momentum conservation in Beta decay. In Beta decay the system conserve energy and momentum as no external force is needed in this process. but experimentally the system was not following these concepts so a particle named neutrino was postulated to conserve the energy and momentum. which was later proved experimentally.

properties of neutrino

half spin. they are fermions.

They are in lopton family

interact only through weak forces.

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