What is the wavelength of radiation produced by the system in the figure below? 
Definitions:
Singlet
A term used in spectroscopy to describe an energy state of an atom or molecule where all electron spins are paired, resulting in zero net magnetic spin.
NMR
A powerful technique for determining the physical and chemical properties of atoms by studying their magnetic properties related to nuclear spin.
Triplet
A term used in quantum mechanics and spectroscopy to describe a system or state with three closely related energy levels or components.
Multiplet
In spectroscopy, refers to a pattern of two or more peaks that are closely spaced in the spectrum, indicating the presence of equivalent or similar atomic environments.
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