Water rises in a capillary tube kept vertical | vedclass

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(D) The formula for capillary rise is given by $h = \frac{2T \cos 	heta}{r ho g_{eff}}$,where $T$ is surface tension,$	heta$ is the contact angle,

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On Earth,in a lift moving down with constant acceleration,the height is less than $h$.

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(D) The formula for capillary rise is given by $h = \frac{2T \cos 	heta}{r ho g_{eff}}$,where $T$ is surface tension,$	heta$ is the contact angle,$r$ is the radius of the tube,$ho$ is the density of the liquid,and $g_{eff}$ is the effective acceleration due to gravity. From this relation,we see that $h \propto \frac{1}{g_{eff}}$. $A$: On Jupiter,$g$ is much larger than on Earth,so $h$ will be less than $h_{earth}$. This is true. $B$: In a lift moving up with constant acceleration $a$,$g_{eff} = g + a > g$,so $h$ will be less than $h_{earth}$. This is true. $C$: On the Moon,$g$ is less than on Earth,so $h$ will be more than $h_{earth}$. This is true. $D$: In a lift moving down with constant acceleration $a$,$g_{eff} = g - a < g$,so $h$ will be greater than $h_{earth}$. The statement that it is less than $h$ is false.

Water rises in a capillary tube kept vertically on the surface of the Earth to a height $h$. Choose the false statement regarding capillary rise from the following $:-$

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