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PSEB-THE HUMAN EYE AND THE COLOURFUL WORLD-Exercise
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- Why is a normal eye not able to see clearly the objects placed closer ...
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- Why do stars twinkle?
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- Explain why the planets do not twinkle.
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- Why does the sun appear reddish in the morning (as well as in evening)...
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- Why does the sky appears dark instead of blue to an astronaut?
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