JEE Advanced 2023 · Paper 2 · numerical answer

JEE Advanced 2023 Physics question on Properties of Matter

An incompressible liquid is kept in a container having a weightless piston with a hole. A capillary tube of inner radius 0.1 mm 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 V0V_0 to 100101V0\dfrac{100}{101}V_0 with the movable piston. Considering air as an ideal gas, the height (hh) of the liquid column in the capillary above the liquid level in cm is_______.

[Given: Surface tension of the liquid is 0.0750.075 N m−1^{-1}, atmospheric pressure is 10510^5 N m−2^{-2}, acceleration due to gravity (gg) is 1010 m s−2^{-2}, density of the liquid is 10310^3 kg m−3^{-3} and contact angle of capillary surface with the liquid is zero]
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Answer: 25

[JEE Advanced 2023 · Paper 2]

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