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

  • question_answer
    The shortest wavelength of X-rays emitted from an X-ray tube depends on the  [MP PMT 1987; CPMT 1988, 92; IIT 1982]

    A)            Current in the tube           

    B)            Voltage applied to the tube

    C)            Nature of gas in the tube

    D)            Atomic number of target material

    Correct Answer: B

    Solution :

               \[{{\lambda }_{\min }}=\frac{hc}{eV}.\] where h, c and e are constants. Hence \[{{\lambda }_{\min }}\,\propto \,\frac{1}{V}\]


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