What is the capillary rise in a narrow two dimensional slit of width ‘w’?
(a) Half of that in a capillary tube of diameter ‘w’
(b) Two-third of that in a capillary tube of diameter ‘w’
(c) one-third of that in a capillary tube of diameter ‘w’
(d) one-fourth of that in a capillary tube of diameter ‘w’