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NEET2026PhysicsChapterActual

Select the correct statements among the following : A. The strong nuclear force between a pair of nucleons is charge-independent. B. The density of a nucleus is independent of its mass number A . C. The average binding energy per nucleon is maximum for ⁵⁶ Fe . D. In both nuclear fission and fusion processes, the total rest mass of the products is greater than that of the reactants. Choose the most appropriate answer

Options

  1. AA, B and C only
  2. BA, C and D only
  3. CB and C only
  4. DA, B and D only

Correct answer

A. A, B and C only

Step-by-step solution

Statement A is correct because the strong nuclear force is charge-independent; it is approximately the same for proton-proton, neutron-neutron, and proton-neutron pairs. Statement B is correct because the radius of a nucleus is given by R = R₀ A^ 1/3 . The volume is V = 4 3 R^3 = 4 3 R₀^3 A . The mass of the nucleus is approximately m A , where m is the average mass of a nucleon. Thus, density = m A 4 3 R₀^3 A = m 4 3 R₀^3 , which is independent of the mass number A . Statement C is correct because the binding ener

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