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

  • question_answer
    In an X-rays tube, the intensity of the emitted X-rays beam is increased by           [MNR 1992; RPMT 1996; UPSEAT 2000]

    A)            Increasing the filament current

    B)            Decreasing the filament current

    C)            Increasing the target potential

    D)            Decreasing the target potential

    Correct Answer: A

    Solution :

               By changing the filament current with the help of rheostat, thermionic emission intensity of X-rays can be changed.


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