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  4. Check the correct statements on scattering of light. S1: Rayleigh scattering is responsible for the bluish appearance of sky. S2: Rayleigh scattering is proportional to 1/λ 4 when the size of the scatterer is much less than λ . S3: Clouds having droplets of water (large scattering objects) scatter all wavelengths are almost equal and so are generally white. S4: The sun looks reddish at sunset and sunrise due to Rayleigh scattering.

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Q. Check the correct statements on scattering of light.
$S_1$ : Rayleigh scattering is responsible for the bluish appearance of sky.
$S_2$ : Rayleigh scattering is proportional to $ 1/\lambda ^{4} $ when the size of the scatterer is much less than $ \lambda $ .
$S_3$ : Clouds having droplets of water (large scattering objects) scatter all wavelengths are almost equal and so are generally white.
$S_4$ : The sun looks reddish at sunset and sunrise due to Rayleigh scattering.

AMUAMU 2010Ray Optics and Optical Instruments

Solution:

All statements are correct on scattering of light.