The colour of the sky is blue due to

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(A) According to Rayleigh's law of scattering, the intensity of scattered light $I$ is inversely proportional to the fourth power of its wavelength, g

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Scattering of light

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(A) According to Rayleigh's law of scattering, the intensity of scattered light $I$ is inversely proportional to the fourth power of its wavelength, given by $I \propto \frac{1}{\lambda^4}$.Since the wavelength of blue light $(\lambda_{blue})$ is the shortest among the visible spectrum, it undergoes maximum scattering by the atmospheric particles.Therefore, the sky appears blue to our eyes.

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