Question

What is the minimum total energy released when an electron and its antiparticle (positron) annihilate each other?

Answer 1

the minimum total energy released when an electron and its antiparticle (positron) annihilate each other is:-

2 mc^2. [Mass of electron m and c is the velocity of light.]

m=1*10^(-30) kg., c =3*10^ 8 m/s

energy released = 2 *9* 10 ^(-14) j

1 j =6*10^(18) eV.

Energy released = 6*18*10^4 eV

=104*10^4 eV

=1.04 MeV.

Answer 2

Energy, in a form of gamma rays, is released when an electron and its antiparticle (positron) annihilate each other.