The reddish appearance of the sun at sunrise and sunset

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The reddish appearance of the sun at sunrise and sunset is due to

1. the colour of the sky
2. the scattering of light
3. the polarisation of light
4. the colour of the sun

Correct Option: B

It is due to scattering of light.

Scattering ∝	1
	λ⁴

Hence the light reaches us is rich in red.