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Manipal Engineering Manipal Engineering Solved Paper-2012

  • question_answer
    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

    Correct Answer: A

    Solution :

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


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