Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

A free neutron decays into a proton, an electron and

Options:

A neutrino

An antineutrino

An alpha particle

A beta particle

Correct Answer:

An antineutrino

Explanation:

${ }_0 n^1={ }_1 p^1+{}_{-1} e^0+\bar{v}$

Antineutrino is required for conservation of spin.