IGNOU MCH 20 2026 - Spin-Spin splitting

Question

Spin-Spin splitting

21 Jan 2026

Answer :

Word Count : 272

Spin-spin splitting, also known as J-coupling, is a fundamental concept in atomic and molecular spectroscopy, particularly in nuclear magnetic resonance (NMR) spectroscopy. It arises due to the interaction between magnetic nuclei within a molecule. Each nucleus with a non-zero spin generates a small magnetic field that influences neighboring nuclei, leading to splitting of NMR signals into multiple components. This phenomenon provides detailed information about the

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