Assertion :The contact angle between water and glass is acute. Reason: The surface of water in the capillary is convex.

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 C Assertion is correct but Reason is incorrect
The angle of contact between water and glass is an acute angle. The shape of the meniscus between the water and glass is a concave surface. Therefore, the angle between the water and the glass will be an acute angle.

Thus, the assertion is correct and the reason is wrong.

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