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:

Question

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:

G1 Physics · Accepted Answer

Statement I is correct because contact angle depends on the nature of the solid-liquid pair. Capillary rise is: h = 2T cosθ/(ρgr) Thus h depends on the radius r of the capillary tube. Therefore, Statement II is incorrect. Hence, Option C is correct.