The binding energy of deutron is 2.2 MeV and that of ₂⁴He is 28 MeV.

The Binding Energy Of Deutron Is 22 Mev And That Physics QuestionThe Binding Energy Of Deutron Is 22 Mev And That Physics Question

The binding energy of deutron is 2.2 MeV and that of ₂⁴He is 28 MeV. If two deutrons are fused to form one ₂⁴He then the energy released is

Options

(a) 30.2 MeV
(b) 25.8 MeV
(c) 23.6 MeV
(d) 19.2 MeV

Correct Answer:

23.6 MeV

Explanation:

₁H² + ₁H² → ₂He⁴ + energy

.·. Energy released = B.E or ₂He⁴ – 2(B.E. of ₁H²)

= 28 – 2(2.2) = 28 – 4.4 = 23.6 Mev

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