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Grade 10Modern Physics

The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of 2He4is

(a) 0.061 u

(b) 0.0305 j

(c) 0.0305 erg

(d) 28.4 MeV

Profile image of Navjyot Kalra
12 Years agoGrade 10
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1 Answer

Profile image of Aditi Chauhan
12 Years ago

(d)

Δm = (2 × 1.0074 + 2 × 1.0087 - 4.0015) = 0.0307

E = (Δm) × 931 Mev = 0.0307 × 931 = 28.5 Mev

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