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Consider a Sample of a Pure Beta-active Material. - Physics

MCQ

Consider a sample of a pure beta-active material.

Options

  • All the beta particles emitted have the same energy.

  • The beta particles originally exist inside the nucleus and are ejected at the time of beta decay.

  • The antineutrino emitted in a beta decay has zero mass and hence zero momentum.

  • The active nucleus changes to one of its isobars after the beta decay.

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Solution

The active nucleus changes to one of its isobars after the beta decay.

In a beta decay, either a neutron is converted to a proton or a proton is converted to a neutron such that the mass number does not change. Also,the number of the nucleons present in the nucleus remains the same. Thus, the active nucleus gets converted to one of its isobars after beta decay.

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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 24 The Nucleus
MCQ | Q 4 | Page 441
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