Question

    ______ rays have the highest penetrating power.

    A Gamma rays Correct Answer Incorrect Answer
    B Alpha rays Correct Answer Incorrect Answer
    C Ultraviolet rays Correct Answer Incorrect Answer
    D Radio waves Correct Answer Incorrect Answer

    Solution

    The Gamma rays can penetrate solids because they are small and have a lot of energy. Also, Gamma rays are not charged and do not have mass; they can easily penetrate body tissue.

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