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Given below are two statements : Statement I : When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be 0^°. Statement II : The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well. In the light of the above statement, choose the correct answer from the options given below.

Both Statement I and Statement II are false

Both Statement I and Statement II are true

Statement I is true and Statement II is false

Fluid Mechanics

JEE Main level, single correct, medium

108 of 192

Question 108 of 192

Given below are two statements :
Statement I : When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be $0^{\circ}$ .
Statement II : The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well.
In the light of the above statement, choose the correct answer from the options given below.

Show answer and solution

Answer: (C) Statement I is false but Statement II is true

Capillary rise

\mathrm{h}=\frac{2 \mathrm{~T} \cos \theta}{\rho \mathrm{gr}} \text {; }

\theta=0^{\circ}

then rise is non-zero

\therefore

Statement-1 is incorrect.

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