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

    Question

    What is the most commonly used Substance in fluorescent

    tubes?
    A Sodium oxide and argon Correct Answer Incorrect Answer
    B Sodium vapour and neon Correct Answer Incorrect Answer
    C Mercury vapour and argon Correct Answer Incorrect Answer
    D Mercury oxide and neon Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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