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At-higher magnetic fields, the splitting of spectral lines is disturbed. This effect is called __________

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At-higher magnetic fields, the splitting of spectral lines is disturbed. This effect is called __________

(a) Stark Effect

(b) Inverse Zeeman Effect

(c) Paschen-back effect

(d) Anomalous Zeeman effect

The question was asked in an internship interview.

My query is from Zeeman Effect in chapter Quantum Physics of Engineering Physics I

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The correct answer is (c) Paschen-back effect

To elaborate: The Paschen–Back effect is the splitting of atomic energy levels in the presence of a strong magnetic field. This occurs when an external magnetic field is sufficiently strong to disrupt the coupling between orbital and spin angular momenta.

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