MCQ
Rising and setting sun appears to be reddish because :
- ADiffraction sends red rays to the earth at these times
- ✓Scattering due to dust particles and air molecules are responsible
- Crefraction is responsible
- Dpolarization is responsible
✓
Answer
Correct option: B.
Scattering due to dust particles and air molecules are responsible
b
Rising and setting sun appears red because light from the sun travels slightly more distance from the horizon, than when it is overhead. Hence blue light is scattered by dust in the atmosphere because scattering
Rising and setting sun appears red because light from the sun travels slightly more distance from the horizon, than when it is overhead. Hence blue light is scattered by dust in the atmosphere because scattering
$\propto \frac{1}{\lambda_{4}}$ and $\lambda_{b}<\lambda_{r} .$ Red colour is less scattered and reaches us.
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