A light cylindrical tube 'T' of length `l` and radius 'r' containing air is inverted in water (density d). One end of the tube is open and the other is closed A block 'B' of density 2d is kept on the tube as shown in the figure. The tube stays in equilibrium in the position shown. (Assume the atmosphere pressure is to be `P_(0)`)
Assume that density of air is very small than density of block and water. Pick up the correct statement (s)

Options

A. `v=(d_(1))/(d_(2)-d_(1))(pr^(2)l)/(3)`
B. `v=(d_(2))/(d_(2)-d_(1))(pr^(2)l)/(3)`
C. `v=(d_(1))/(d_(1)-d_(2))(pr^(2)l)/(3)`
D. `(d_(1))/(d_(2))(pr^(2)l)/(3)`

Answer

A