KCET · Physics · Nuclear Physics
When a neutron is disintegrated to give a \(\beta\)-particle,
- A a neutrino alone is emitted
- B a proton and neutrino are emitted
- C a proton alone is emitted
- D a proton and an antineutrino are emitted
Answer & Solution
Correct Answer
(D) a proton and an antineutrino are emitted
Step-by-step Solution
Detailed explanation
A beta minus particle \(\left(\beta^{-}\right)\)is an electron. Emission of \(\beta^{-}\)involves transformation of a neutron into a proton, an electron and a third particle called antineutrino \((\bar{v})\).
\[
{ }_{0} \mathrm{n}^{1}={ }_{1} \mathrm{p}^{1}+{ }_{-1} \beta^{0}+\bar{v}
\]
\[
{ }_{0} \mathrm{n}^{1}={ }_{1} \mathrm{p}^{1}+{ }_{-1} \beta^{0}+\bar{v}
\]
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