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

Question

In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption? (A) Ultraviolet (B) Microwave (C) Infrared (D) Radio wave

Tardigrade Admin · Accepted Answer

Molecular spectra due to vibraiional motion lies in the microwave region of electro magnetic spectrum. Due to Kirchhoffs law in spectroscopy the same will be absorbed.

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

Ultraviolet

Microwave

Infrared

Radio wave

Molecular spectra due to vibraiional motion lies in the microwave region of electro magnetic spectrum. Due to Kirchhoffs law in spectroscopy the same will be absorbed.