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Nuclei — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsNuclei1 Mark
MCQ
During $\beta^-$ emission:
  • A
    A neutron in the nucleus decays emitting an electron.
  • B
    An atomic electron is ejected.
  • C
    A part of the binding energy of the nucleus is converted into an electron.
  • D
    A proton in the nucleus decays emitting an electron.
✓

Answer

  1. A neutron in the nucleus decays emitting an electron.

Explanation:

$\beta^-$ emission is due to decay of neutron in the nucleus n → p + e−.

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