What is scattering of light? Use this phenomenon to explain why (i) the Sun appears reddish at sum-rise, and (ii) the clear sky appears blue.

Explanation

**Step-by-Step Solution:**

**Step 1: Define Scattering of Light**
Scattering of light is the phenomenon where light changes its direction of propagation when it interacts with small particles or molecules in the atmosphere. This can occur when light encounters particles such as dust, water droplets, or gas molecules.

**Step 2: Explain the Reddish Appearance of the Sun at Sunrise**
At sunrise, the Sun is positioned near the horizon. As sunlight travels through the atmosphere, it must pass through a larger volume of air compared to when it is overhead. This longer path means that the light interacts with more particles in the atmosphere.

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