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    Question

    Identify the sealed glass vacuum tube containing an

    electron beam that is focused on a phosphor-coated glass screen when light is emitted.
    A Cathode ray tube Correct Answer Incorrect Answer
    B Flat array tube Correct Answer Incorrect Answer
    C Light Emitting Diode tube Correct Answer Incorrect Answer
    D Liquid Crystal Display tube Correct Answer Incorrect Answer

    Solution

    The correct answer is A

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