Statements : The blue colur of sky is due to scattering of light by dirt or dust particles oresebt ub aur . Expabnations : Larger size of disperes phase particles show more sctteing as well as higher is the wavelength of light lesser is scattgering .
A
S is correct but E is wrong .
B
S is worong but E is correct
C
Both S and E are correct and E is correct explanation of (S) .
D
Both S and E are correct but E is not correct explanation of S.
Text Solution
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The correct Answer is:
C
Explanation is correct reason for statement .
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Blue colour of the sky is due to a. Adsorption of light by dust particles b. Reflection of light by dust particles c. Scattering of light by dust particles d. Pressure of clouds which are a colloidal dispersion of water particles in air
Consider the following statements : 1. Clear sky appears blue due to poor scattering of blue wavelength of visible light. 2. Red part of light shows more scattering than blue light in the atmosphere. 3. In the absence of atmosphere, there would be no scattering of light and sky will look black. Which of the statements given above is/are correct?
Assertion: Sky appears blue colour. Reason: Colloidal particles of dust scatter blue light.
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Statement-1 : On viewing the clear blue portion of the sky through a Calcite Crystal, the intensity of transmitted light varies as the crystal is rotated. Statement-2 : The light coming from the sky is polarized due to scattering of sun light by particles in the atmoshphere. The scattering is largest for blue light.
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//lambda^(4) when the size of the scatterer is much less than lambda 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
