Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Easy-Class 11
What is the effect of the contact angle on the height of water rise in a capillary tube with a circular cross-section?
A
Larger contact angle decreases water rise.
B
Smaller contact angle decreases water rise.
C
Contact angle does not affect water rise.
D
Water rise is maximum at 90° contact angle.
Correct Answer
Option A
Detailed Explanation
The contact angle affects the capillary rise. A larger contact angle means less adhesion between the liquid and the tube, thus decreasing water rise.
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