The binding energy per nucleon for deuteron (2/1H) and helium (4/2He) are 1.1 Me V and 7.0 MeV. The energy released when two deuterons fuse to form a helium nucleus is

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Q: The binding energy per nucleon for deuteron (2/1H) and helium (4/2He) are 1.1 Me V and 7.0 MeV. The energy released when two deuterons fuse to form a helium nucleus is

(a) 2.2 Me V

(b) 23.6 Me V

(c) 28.0 Me V

(d) 30. 2 Me V

Ans : (b)

Sol: 1H2 + 1H2 → 2He4

Energy = 4 × 7-4 × 1.1 = 23 .6 Me V

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