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    Question

    The phenomenon of light associated with the appearance

    of blue colour of the sky is –
    A Interference Correct Answer Incorrect Answer
    B Reflection Correct Answer Incorrect Answer
    C Refraction Correct Answer Incorrect Answer
    D Scattering Correct Answer Incorrect Answer

    Solution

    During daylight, the sky appears tobebluebecauseairscattersbluesunlightmore than it scatters red. At night, the sky appears to beamostlydarksurfaceorregionscatteredwith stars. Except for light that comes directly from thesun,mostofthelightinthedayskyisaresult of scattering, which is dominated by a small- particle limit called Rayleigh scattering.

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