Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a vertical capillary tube of circular cross-section inserted into an open vessel of water. Which of the following best describes the effect observed at the liquid-air interface inside the tube?
A
Water rises due to surface tension overcoming gravity.
B
Water falls due to gravity overcoming surface tension.
C
Water remains at the same level inside and outside the tube.
D
Air pressure pushes water down in the tube.
Correct Answer
Option A
Detailed Explanation
The capillary rise in a narrow tube is due to surface tension, which causes the liquid to rise against gravity, as described in the NCERT context.
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