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  4. In a capillary tube experiment, a vertical 50 cm long capillary tube is dipped in water. The water rises up to a height of 20 cm due to capillary action. If this experiment is conducted in a freely falling elevator, the length of the water column becomes :

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Q. In a capillary tube experiment, a vertical $50 \,cm$ long capillary tube is dipped in water. The water rises up to a height of $20 \,cm$ due to capillary action. If this experiment is conducted in a freely falling elevator, the length of the water column becomes :

Mechanical Properties of Solids

Solution:

$\because g_{\text {eff }}=0$
Then height $=50\, cm$