CBSE Class 12-science Answered

Neutrino and antineutrino which are subatomic particles are called 'ghost' particle .

(This name is given by Italian scientist Enrico Fermi ) .

Neutrino is emitted along with positron in β⁺ decay and anti-neutrino is emiited along with electron in β^- decay .

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Neutrino and anti-neutrino  do not have charge . hence there is no electromagnetic interaction .

Neutrino and anti-neutrino have negiligible mass , hence no gravitational force of interaction.

Hence neutrino and anti-neutrino react with matter only through the very weak interaction of the weak force as happening in radioactive decay.

Neutrino and  anti-neutrino are therefore the most penetrating of subatomic particles, capable of passing through an enormous

number of atoms without causing any reaction.

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neutrino do not travel faster than photons.