Assertion :Dry sand appears bright . Reason: Dry sand is smooth .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Dry sand appears brighter as compared to wet sand because wet sand contains water and water transmits light well whereas light gets reflected well from dry sand. this is the reason why dry sand appears bright and wet sand looks dark.

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