The GATE Grind

GATE Atomic and Molecular Physics: Zeeman, Paschen-Back and Stark effects – Previous Year Questions

2 GATE previous year questions on Zeeman, Paschen-Back and Stark effects (Atomic and Molecular Physics, Physics) with answers and explanations, from every paper.

  1. GATE 2022 PH Q22 (1 mark, Multiple select) – For normal Zeeman lines observed ∥ and ⊥ to the magnetic field applied to an atom, which of the following statements are true?
  2. GATE 2024 PH Q42 (2 marks, Multiple choice) – An atom is subjected to a weak uniform magnetic field B⃗ . The number of lines in its Zeeman spectrum for transition from n= 2, l= 1 to n= 1, l= 0 is