Rayleigh scattering can be reduced by operating at smallest possible wavelengths.

The correct answer is False.

Rayleigh scattering is inversely proportional to the fourth power of the wavelength, so operating at the smallest possible wavelengths will actually increase the amount of scattering.

Rayleigh scattering is a scattering phenomenon in which electromagnetic radiation (of which light is a form) is scattered by particles of a much smaller wavelength. Sunlight is scattered by the tiny molecules of air in Earth’s atmosphere, which is why we see a blue sky most of the time.

The amount of scattering is inversely proportional to the fourth power

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