UPSC Physics Atomic Physics Question Bank Modern physics and Sources of energy

  • question_answer
         
    Which one of the following is correct?                           [NDA]
    The wavelength of the X-rays
                             

    A) is longer than the wavelength of sound waves

    B) is longer than the wavelength of the yellow sodium light

    C) is longer than the wavelength of radio waves

    D) is of the order of 0.1 nanometer

    Correct Answer: D


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