Verified Answer :

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

Solution:

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=110^(-30) kg., c =310^ 8 m/s  

energy released = 2 9 10 ^(-14) j  

1 j =610^(18) eV.  

Energy released = 61810^4 eV

                               =10410^4 eV  

                                 =1.04 MeV.



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