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  4. In which of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?

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Q. In which of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption?

Electromagnetic Waves

Solution:

Molecular spectra occurs due to vibrational motion lie in the microwave region of EM-spectrum due to Kirchoff's law in spectroscopy the same will be absorbed. Kirchoff's law in-spectroscopy explains the spectrum of an object is the radiation in the intensity of its radiation at different wavelengths