A) Rise of a liquid column inside a capillary
B) Operation of a venturimeter
C) Lift provided to an aeroplane by the air
D) Propelling force provided to an aeroplane by its propellers
Correct Answer: A
Solution :
The rise up liquid inside a capillary tube is depends on pressure \[\frac{2T}{R}\]. T is surface tension and R is radius of tube.
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