J & K CET Engineering J and K - CET Engineering Solved Paper-2006

  • question_answer
    Mercury vapour lamp gives

    A)  continuous spectrum

    B)  line spectrum

    C)  band spectrum

    D)  absorption spectrum

    Correct Answer: B

    Solution :

    When electric discharge is passed through mercury vapour lamp, eight to ten lines from red to violet are seen in its spectrum. In some line spectra there are only a few lines, while in many of them there are hundreds of them. Hence, mercury vapour lamp gives line spectra.


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