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Properties of Matter

Section: Physics

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Question : 3

Total: 46

An incompressible liquid is kept in a container having a weightless piston with a hole. A capillary tube of inner radius 0.1‌mm is dipped vertically into the liquid through the airtight piston hole, as shown in the figure. The air in the container is isothermally compressed from its original volume V0 to ‌

V0 with the movable piston. Considering air as an ideal gas, the height (h) of the liquid column in the capillary above the liquid level in cm is _________________
[Given: Surface tension of the liquid is 0.075Nm−1, atmospheric pressure is 105Nm−2, acceleration due to gravity (g) is 10m s−2, density of the liquid is 103‌kg‌m−3 and contact angle of capillary surface with the liquid is zero]

[JEE Adv 2023 P2]

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