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    5. The phenomenon of radioactivity was discovered by -

    Question

    The phenomenon of radioactivity was discovered by -

    A Marie Curie Correct Answer Incorrect Answer
    B Pierre Curie Correct Answer Incorrect Answer
    C Henri Becquerel Correct Answer Incorrect Answer
    D J.J. Thomson Correct Answer Incorrect Answer

    Solution

    In 1896 Henri Becquerel was using naturally fluorescent minerals to study the properties of x-rays

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