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1. |
At sunrise or at sunset the sun appears to be reddish while at mid-day it looks white. This is because |
A. | scattering due to dust particles and air molecules causes this phenomenon |
B. | the sun is cooler at sunrise or at sunset |
C. | refraction causes this phenomenon |
D. | diffraction sends red rays to the earth at these times |
Answer» B. the sun is cooler at sunrise or at sunset | |