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    Color of mercury vapour lamp is:
    Question

    Color of mercury vapour lamp is:

    A.

    Greenish blue

    B.

    Reddish

    C.

    Yellowish

    D.

    Bluish green

    Correct option is A


     Mercury vapor lamps emit light that appears greenish-blue.
     This characteristic color is due to the spectral lines of mercury, which predominantly emit in the blue and green portions of the visible spectrum.

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