Question

The `beta - decay` process , discoverwd around `1900` , is basically the decay of a neutron `(n)` in the laboratory , a proton `(p)` and an electron `(e^(bar))` are observed as the decay that the kinetic energy of the electron should be a constant . But experimentally , if was observed that the electron kinectic energy has continuous spectrum Considering a three- body decay process , i.e.
` n rarr p + e^(bar) + bar nu _(e) , ` around `1930` , pauli expained the observed `(bar nu_(e))` to be massaless and possessing negligible energy , and the neutrino to be at rest , momentum and energy conservation principle are applied from this calculate , the maximum kinectic energy of the electron is `0.8 xx 10^(6) eV` The kinectic energy carrect by the proton is only the recoil energy
What is the maximum energy of the anti-neutrino ?
A. zero
B. Mach less then `0.8 xx 10^(6)eV`
C. Nearly `0.8 xx 10^(6)eV`
D. Mach large then `0.8 xx 10^(6)eV`

Answer 1

Correct Answer - C
The energy sharred between anti- neutrino and electron . If the energy of electron is almost zero then the maximum energy of anti - neutrino is rearly `0.8 xx 10^(6)eV`