Physics · Mechanical Properties of Matter
JEE Main 2024 — 4 April, Shift 2 — Question 39
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 :
- Option A:
Both Statement I and Statement II are false
- Option B:
Statement I is false but Statement II is true.
- Option C:Correct
Statement I is true but Statement II is false.
- Option D:
Both Statement I and Statement II are true.
Answer: C
Step-by-step solution
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) Hence option (3) is correct.
Answer key and solution verified before publishing.
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- Exam
- JEE Main 2024
- Paper
- 4 April, Shift 2
- Subject
- Physics
- Chapter
- Mechanical Properties of Matter
- Topic
- Contact Angle and Capillarity