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Question

Assertion :If there were no atmosphere, the duration of the day on the earth would decrease. Reason: Due to refraction in the atmosphere, the sun appears to rise earlier and sets later.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Due to refraction in the atmosphere, the sun appears to rise earlier and sets later, it increases the duration of day on the earth. If there were no atmosphere then there would be no refraction and duration of day would decrease.

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