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

  • question_answer
    In Thomson's method of determining e/m of electrons [MP PMT 1997

    A)            Electric and magnetic fields are parallel to electrons beam

    B)            Electric and magnetic fields are perpendicular to each other and perpendicular to electrons beam

    C)            Magnetic field is parallel to the electrons beam

    D)            Electric field is parallel to the electrons beam

    Correct Answer: B

    Solution :


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