New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The radiation initially produced in fluorescent tube is

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    A infrared Correct Answer Incorrect Answer
    B ultraviolet Correct Answer Incorrect Answer
    C microwaves Correct Answer Incorrect Answer
    D X-rays Correct Answer Incorrect Answer

    Solution

    The primary radiation that is initially produced within a fluorescent lamp is analogous to that emitted by a low pressure mercury lamp. Fluorescent lamps produce UV radiation by ionizing low-pressure mercury vapour. A phosphorescent coating on the inside of the tubes absorbs the UV and converts it to visible light.

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