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    Question

    Sensitivity of the human eye is maximum in the –

    A Violet region Correct Answer Incorrect Answer
    B Green region Correct Answer Incorrect Answer
    C Blue region Correct Answer Incorrect Answer
    D Red region Correct Answer Incorrect Answer

    Solution

    The human eye is sensible to light wave which wavelength is roughly between 400 nm and 700 nm. When illumination is enough (in daylight) the maximum sensitivity is in the green region at 555 nm.

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