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Zeeman effect — CSIR Net PYQ (Question 5)

A Zeeman effect previous-year question (PYQ) from Atomic and Molecular Physics (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 5 of 7 · 5.0 marks

The red line of wavelength 644 nm in the emission spectrum of Cd corresponds to a transition from the level to the level. In the presence of a weak magnetic field, this spectral line will split into (ignore hyperfine structure)
  1. 19 lines
  2. 26 lines
  3. 33 lines
  4. 42 lines
Correct answer: Option 3

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This Zeeman effect PYQ is part of the Atomic and Molecular Physics section of CSIR Net. Browse more Zeeman effect questions or join the PhysicsByAaryan live batch for full conceptual coverage.