Ray Optics and Optical Instruments — Physics STD 12 Science — Question
Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsRay Optics and Optical Instruments1 Mark
Question
The clear sky appears blue because:
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Answer
Violet and blue lights get scattered more than lights of all other colours by the atmosphere.
Explanation:
The scattering of light depends on the size of the dust particles and the wavelength of the light. The amount of scattering is inversely proportional to the fourth power of wavelength.
Since, violet and blue lights get scattered more than lights of all other colours by the atmosphere the sky appears blue.
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