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Physics Fluid Mechanics Statement Based MCQ (Single Correct)

Given below are two statements:

Statement I: The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well.

Statement II: The rise of a liquid in a capillary tube does not depend on the inner radius of the tube. In the light of the above statements, choose the correct answer from the options given below:

A
Statement I is true but Statement II is false.
B
Statement I is false but Statement II is true.
C
Both Statement I and Statement II are false.
D
Both Statement I and Statement II are true.

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Text Solution

Verified by Experts
The correct answer is:
A

Statement I is correct as we know contact angle depends on cohesine and adhesive forces.

Statement II is incorrect because height of liquid is given by where r is radius of Tube (assuming length of capillary is sufficient).

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