During β− decay, a neutron inside nucleus converts into proton, electron and x. Then, what is the particle x?
π+- meson
π−- meson
anti-neutrino
neutrons
A
neutrons
B
anti-neutrino
C
π−- meson
D
π+- meson
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Solution
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Process of β decay n0→1P+e−+¯Ve where, p=proton e−=electron ¯Ve=antineutrino
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