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नाभिक X176 ß क्षय कर नाभिक Y176 में क्षयित है यदि X तथा Y के परमाण्वीय दव्यमान क्रमश: 175.942694 u है तथा 175.941426 u है तो असर्जित ß कण की अधिकतम ऊर्जा जात करो।

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X176 → Y179 + -ß0

द्रव्यमान क्षति ∆m = [175.94294 - 175.941426] u

∆m = 0.001268 u

ß कण को अधिकतम गतिज ऊर्जा

EK = ∆mc2

1 u = 931 \(\frac{MeV}{C^2}\)

EK = 0.001268 x 931 \(\frac{MeV}{C^2}\) C2

EK = 1.18 MeV

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