Which of the following entity, for a specific size, would have the highest-pressure difference across its interior and exterior? The surface tension of water is -3 times more than that of ethanol at `20^(@)C`.
Which of the following entity, for a specific size, would have the highest-pressure difference across its interior and exterior? The surface tension of water is -3 times more than that of ethanol at `20^(@)C`.
A
A water drop
B
A water bubble
C
An air cavity in water
D
An ethanol bubble
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Two narrow bores of diameters 3.0 mm and 6.0 mm are joined together to form a U-tube open at both ends. If the U-tube contains water, what is the difference in its levels in the two limbs of the tube ? Surface tension of water at the temperature of the experiment is 7.3xx 10^-2 N m^-1 '. Take the angle of contact to be zero and density of water to be 1.0xx 10^3 kg m^- 3 ( g = 9.8 m s^-2 ) .
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