A science museum is preparing an exhibit that explains why the sky appears blue during the day but turns red at sunrise and sunset. On the basis of the scattering of light in the atmosphere, which explanation best clarifies these observations?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) Short wavelengths are scattered more strongly, while at sunset the longer atmospheric path becomes favourable for red wavelengths.
2. (B) The Sun emits more blue light during the day, while at sunset it emits more red light.
3. (C) Atmospheric absorption removes red light during the day and blue light at sunset.
4. (D) Dust particles scatter all wavelengths equally, so red light becomes more visible at sunset when there is more dust.

Verified Answer

Option (A): Short wavelengths are scattered more strongly, while at sunset the longer atmospheric path becomes favourable for red wavelengths.

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