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प्रश्न
The radius of a nucleus of mass number 125 is ______.
विकल्प
6.0 fm
30 fm
72 fm
150 fm
MCQ
रिक्त स्थान भरें
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उत्तर
The radius of a nucleus of mass number 125 is 6.0 fm.
Explanation:
Given: A = 125
R0 ≈ 1.2 fm
The radius of a nucleus is given by the empirical formula:
R = R0A1/3
= 1.2 × (125)1/3
= 1.2 × 5
= 6 fm
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