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In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption |
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a) |
Ultraviolet |
b) |
Microwaves |
c) |
Infrared |
d) |
Radio waves |
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In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption |
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|
a) |
Ultraviolet |
b) |
Microwaves |
c) |
Infrared |
d) |
Radio waves |
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(b) Molecular spectra due to vibrational motion lie in the microwave region of EM-spectrum. Due to Kirchhoff’s law in spectroscopy the same will be absorbed |