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BCECE Engineering BCECE Engineering Solved Paper-2001

  • question_answer
    Modem periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of:

    A) discovery of X-ray by Roentgen

    B) Mullikans oil drop experiment

    C) Braggs work on X-ray diffraction

    D) Mosleys work on X-ray spectra

    Correct Answer: D

    Solution :

    (a) Discovery of X-ray by Roentgen helped in finding radiations from atom. (b) Mullikans oil drop experiment determines the charge on electron. (c) Braggs work on X-ray diffraction helped in determining structure of solids. (d) Moslems work on X-ray spectra proved significance of atomic number.


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