JEE Advanced 2025 Physics question

PhysicsAtomsJEE Advanced 2025

List-I shows various functional dependencies of energy (E) on the atomic number (Z). Energies associated with certain phenomena are given in List-II. Choose the option that describes the correct match between the entries in List-I to those in List-II. List-I (P) (Q) (R) (S) E is practically independent of Z List-II (1) energy of characteristic x-rays (2) electrostatic part of the nuclear binding energy for stable nuclei with mass numbers in the range 30 to 170 (3) energy of continuous x-rays (4) average nuclear binding energy per nucleon for stable nuclei with mass number in the range 30 to 170 (5) energy of radiation due to electronic transitions from hydrogen-like atoms

Answer: (C)

Solution

(P) For hydrogen-like atoms , so transition energies ∝ Z² → (5). (Q) Moseley's law for characteristic (Kα) X-rays: → (1). (R) The Coulomb

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Question ID VK-037819