Daniyal
Last Activity: 8 Years ago
The upward force due to the change in pressure in the capillary.F(up)=∆P*A =(2*S.T.*cos(angle of contact)/R)*πR^2 assuming angle of contact to be zero =2*π*R*S.T.=(circumference)*(6*10^(-2)) This F(up)=75*10^(-4) From there you will get Circumference is 12.5*10^(-2)m.