A capillary tube of radius r is dipped vertically in a liquid of density d, surface tension T and angle of contact theta then the pressure difference just below the two surface, one in the beaker and the other in the capillary tube, is :

A capillary tube of radius r is dipped vertically in a liquid of densi

1.	A capillary tube of radius r is dipped vertically in a liquid of density d, surface tension T and angle of contact theta then the pressure difference just below the two surface, one in the beaker and the other in the capillary tube, is :
Answer» ` ( 2T)/( r)` `( T) /( r cos theta)` `( 2 T cos theta)/( r)` ` ( T cos theta)/( r)` ANSWER :C