TS EAMCET 10-Sep-2020 Shift 1 Solved Paper

Radius of meniscus, R=1cm=10−2m
Number of smaller droplets, n=106
Surface tension, T=435×10−3Nm−1
Work done in splitting a large drop of radius R in n smaller drops is
W=T×∆A
where, ∆A= increase in area
and T= surface tension.
∴‌‌W=(4πR2)T⋅(n1∕3−1)
=54.1×10−3J