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Assertion (A) : Red light signals are used to stop the vehicles on the road. Reason (R) : Red coloured light is scattered the most so as to be visible from a large distance.
What is dispersion of light?
Why do we see the sky as blue during the day but reddish during sunrise and sunset?
Assertion (A): sun appears red during sunrise and sunset. Reason (R): Scattering of light is directly proportional to the wavelength.
Give reasons for the following:
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