JEE Main & Advanced Physics Photo Electric Effect, X- Rays & Matter Waves Question Bank X Rays

  • question_answer
    X-rays of which of the following wavelengths are hardest 

    A)            4 Å

    B)            1 Å

    C)            0.1 Å                                        

    D)            2 Å

    Correct Answer: C

    Solution :

               \[{{\nu }_{\max }}\propto \frac{1}{{{\lambda }_{\min }}}\] Hard X-rays have high frequency and low wavelength.


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