CUET · PHYSICS · PYQ PAPER 2025
Read the following statements regarding energy levels, and identify the correct statements.
(A) The energy of an atom is least when its electron is revolving in an orbit closest to the nucleus
(B) the energy levels of the excited states come closer and closer together as principal quantum number increases
(C) ionisation energy of the hydrogen atom is the minimum energy required to free the electron from the ground state of the hydrogen atom
(D) as the excitation of hydrogen atom increases, the value of minimum energy required to free the electron from the excited atom decreases.
Choose the correct answer from the options given below:
- A (A), (B) and (D) only
- B (A), (B) and (C) only
- C (A), (B), (C) and (D)
- D (B), (C) and (D) only
Answer & Solution
Correct Answer
(C) (A), (B), (C) and (D)
Step-by-step Solution
Detailed explanation
All statements are scientifically accurate: (A) describes the ground state as the lowest energy level;(B) highlights that energy gaps decrease as \(n\) increases; (C) defines ionization energy; and (D) is true because an electron in an excited state is already further from the…
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