WB JEE Medical WB JEE Medical Solved Paper-2006

  • question_answer
    J.J. Thomsons cathode ray tube experimentdemonstrated that:

    A)  cathode rays are streams of negativelycharged ions

    B)  all the mass of an atom is essentially in thenucleus

    C)  the e/m of electrons is much greater thanthee/ mot protons

    D)  the e/ m ratio of the cathode ray particleschanges when a different gas is placed inthe discharge tube

    Correct Answer: C

    Solution :

                     According to J.J. Thomsons cathode ray tube experiment the e/m of electrons is much greater than the e/m of protons.


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