AIPMT PRELIMS2006Physics-Nuclear Physics
AIPMT PRELIMS 2006 Physics Nuclear Structure MCQ Question
Type: MCQ-conceptual-Medium-Class 12
The radius of germanium (Ge) nuclide is measured to be twice the radius of ⁹⁴Be. The number of nucleons in Ge are:
A
73
B
74
C
76
D
72
Correct Answer
Option D
Detailed Explanation
The radius of a nucleus is proportional to the cube root of its mass number (A). If the radius of Ge is twice that of Be, then (A_Ge)^(1/3) = 2(A_Be)^(1/3). Solving gives A_Ge = 76.
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