The binding energy per nucleon of deuterium and helium atom is 1.1 MeV and 7.0 MeV. If two deuterium nuclei fuse to form helium atom, the energy released is [Pb. PMT 2001; CPMT 2001; AIEEE 2004; CBSE PMT 2006, 14; CBSE PMT (mains) 2010]

(1) 19.2 MeV            (2) 23.6 MeV             (3) 26.9 MeV                (4) 13.9 MeV

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