A particle having almost zero mass and exactly zero charge is

Options

A. positron
B. electron
C. neutron
D. neutrino

Answer

D

Explanation

We know that the neutrino is the particle which has almost zero mass and exactly zero charge, Positron has the charge +e and mass `m_(e)` [equal to electron mass].
Electron is a particle which has -e charge and `9.1xx10^(-31)kg` mass.
Neutron is particle which has zero charge and 1838 `m_(e)` mass.
So, the required answer is neutrino.