Nuclear Physics and RadioactivityMedium
Question
When an electron-positron pair annihilates, the energy released is about
Options
A.0.8 × 10-13 J
B.1.6 × 10-13 J
C.3.2 × 10-13 J
D.4.8 × 10-13 J
Solution
When electron-positron pair annihilates the energy released is due to conversion ofmass into energy
Total mass = 2 × 9 × 10-31kg
Energy produced
= 2 × 9 × 10-31 × (3 × 108)2
= 162 × 10-15 = 1.62 × 10-13 J
Total mass = 2 × 9 × 10-31kg
Energy produced
= 2 × 9 × 10-31 × (3 × 108)2
= 162 × 10-15 = 1.62 × 10-13 J
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