Four statements are given (A is mass number) : A. The volume of a nucleus is proportional to A 1/3 . B. The volume of a nucleus is proportional to A . C. The difference in mass of an atom and its nucl

Question

Four statements are given (A is mass number) :
A. The volume of a nucleus is proportional to $A^{1/3}$ .
B. The volume of a nucleus is proportional to $A$ .
C. The difference in mass of an atom and its nucleus is called the mass defect.
D. The difference in mass of a nucleus and its constituents is called the mass defect.
Choose thecorrectanswer from the options given below :NEET 2026 (Cancelled)

TestHub · Accepted Answer

The radius of a nucleus is given by R = R 0 ​ A 1/3 . The volume of the nucleus is V = 3 4 ​ π R 3 = 3 4 ​ π R 0 3 ​ A . Thus, the volume of a nucleus is directly proportional to its mass number A . Statement A is false and Statement B is true. The mass defect is defined as the difference between the sum of the masses of the constituent nucleons (protons and neutrons) and the actual mass of the nucleus. Thus, Statement C is false and Statement D is true. Therefore, B and D are true, but A and C are false. Answer: B and D are true, but A and C are false

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