2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Wave Optics / तरंग प्रकाशिकी

JEE Main & Advanced Physics Wave Optics / तरंग प्रकाशिकी Question Bank EM Waves

  • question_answer
    In which one of the following regions of the electromagnetic spectrum will the vibrational motion of molecules give rise to absorption                                                                        [SCRA 1994]

    A)            Ultraviolet                             

    B)            Microwaves

    C)            Infrared                                 

    D)            Radio waves

    Correct Answer: B

    Solution :

               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.


You need to login to perform this action.
You will be redirected in 3 sec spinner