Q7. Given below are two statements: Statement I : If a capillary tube is immersed first in cold water and then in hot water, the height of capillary rise will be smaller in hot water. Statement II : If a capillary tube is immersed first in cold water and then in hot water, the height of capillary rise will be smaller in cold water. In the light of the above statements, choose the most appropriate from the options given below (1) Both Statement I and Statement II are true (2) Both Statement I and Statement II are false (3) Statement I is true but Statement II is false (4) Statement I is false but Statement II is true
What This Question Tests
This question tests the understanding of the capillary rise formula and how surface tension of a liquid (like water) decreases with increasing temperature. A lower surface tension results in a smaller height of capillary rise.
Concepts Tested
Formulas Used
h = (2T cosθ) / (ρgr)
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📋 Question Details
- Chapter
- Properties of Matter
- Topic
- Capillary action and surface tension
- Year
- 2024
- Shift
- 29 Jan Shift 1
- Q Number
- Q7
- Type
- Assertion Reasoning
- NCERT Ref
- Class 11 Physics Ch 10: Mechanical Properties of Fluids
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