ans b:

7. A body having volume V and density attached to the bottom of a container as shown. Density of the liquid is d(>p). Container has a constant upward acceleration a. Tension in the string is 


$\left(\mathrm{A}\right) \mathrm{V}\left[\mathrm{Dg}-\mathrm{p}\left(\mathrm{g}+\mathrm{a}\right)\right] \left(\mathrm{B}\right) \mathrm{V} \left(\mathrm{g}+\mathrm{a}\right) \left(\mathrm{g}-\mathrm{p}\right) \left(\mathrm{C}\right) \mathrm{V} \left(\mathrm{d}-\mathrm{p}\right) \mathrm{g} \left(\mathrm{D}\right) \mathrm{None} \mathrm{of} \mathrm{these}$