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ORWrite the function of each of the following parts of human eye:(i) Cornea (ii) Iris (ii) Crystalline lens (iv) Ciliary muscles(b) Why does the sun appear reddish early in the morning ? Will this phenomebe observed by an astronaut on the Moon ? Give reason to justify your ans |
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Answer» During sunrise and sunset, the rays have to travel a larger part of the atmosphere because they are very close to the horizon. Therefore, light other thanredis mostly scattered away. Most of theredlight, which is the least scattered, enters our eyes. Hence, thesunand the skyappear red. |
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