PhysicsHardHigh School (11–12)Modern Physics › Nuclei and RadioactivityNEETAEEE (Amrita)AMUEEEAP EAPCETBCECECMI Entrance
Created by StemPy LabAssertion (A): A nucleus of mass number , at rest, emits an alpha particle. The daughter nucleus takes up most of the energy released in the decay. Reason (R): The alpha particle and the daughter nucleus have momenta of equal magnitude, so the lighter of the two has the larger kinetic energy.
← All Quizzes
← Two statements about beta decay are given below.
Statement I: In the beta minus decay of a nuclide, every electron is emitted with the same kinetic energy, because the daughter nucleus takes up the rest of the energy released.
Statement II: The antineutrino emitted in beta minus decay carries away electric charge, so the daughter nucleus has one unit more charge than the parent.Match each emission in List-I with its net effect on the nucleus in List-II. All beta particles are beta minus. List-I (Emission) A. One alpha particle, then two beta particles B. One beta particle C. One gamma ray D. Two alpha particles and two beta particles List-II (Net effect) I. Atomic number lower by 2, mass number lower by 8 II. Atomic number unchanged, mass number lower by 4 III. Atomic number higher by 1, mass number unchanged IV. Neither number changes →
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