Choose the correct nuclear process from the below options [ p: proton, n: neutron, e⁻: electron, e⁺: positron, v: neutrino, v: antineutrino] (a) n → p + e⁺ + v (b) n → p + e⁻ + v (c) n → p + e⁺ + v (d) n → p + e⁻ + v

Answer: (b). Charge conservation: 0 = (+1) + (-1), so the neutron must give an electron, not a positron. Lepton number conservation: the electron ( L = +1) must come with an antineutrino ( L = -1). n → p + e⁻ + ν So the answer is (b).

Choose the correct nuclear process from the below options [ p… | JEE Main 2025 (28 Jan, Shift 1)

Q6JEE Main 2025 · 28 JAN · SHIFT 1Medium

Radioactive Decays: Alpha, Beta, Gamma

Choose the correct nuclear process from the below options [ p: proton, n: neutron, $\text{e}^{-}$ : electron, $\text{e}^{+}$ : positron, $v :$ neutrino, $\bar{v} :$ antineutrino]

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Answer: (b)

Charge conservation: $0 = (+1) + (-1)$ , so the neutron must give an electron, not a positron.
Lepton number conservation: the electron ( $L = +1$ ) must come with an antineutrino ( $L = -1$ ).
$n \to p + e^- + \bar{\nu}$
So the answer is (b).

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Radioactive Decays: Alpha, Beta, Gamma question from JEE Main 2025 (28 Jan, Shift 1)

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