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A 20 cm long capillary tube is dipped in...

A 20 cm long capillary tube is dipped in water The water rises upto 8 cm . If the entire arrangement is put in freely falling elevator,the length of water column in capillary tube will be ?

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In freely falling elevator `g=0` .Hence ,water rises in tube .`(h=(2costheta)/(rrhog))`. Therefore water fill whole tube So, length of water column in tube is 20 cm .
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