Diffusion of light in the atmosphere is due to the following
Diffusion of light in the atmosphere occurs primarily due to the presence of dust particles. These microscopic particles scatter sunlight as it passes through the atmosphere, causing the sky to appear blue during the day and red or orange during sunrise and sunset.
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The diffusion of light in the atmosphere is primarily caused by dust particles (option B). These particles scatter sunlight as it passes through the atmosphere, influencing the color of the sky. During the day, shorter blue wavelengths are scattered more, making the sky appear blue. During sunrise and sunset, longer red and orange wavelengths dominate due to the scattering of shorter wavelengths by dust particles, creating vivid colors in the sky.