A tank of size `10 m xx 10 m xx 10 m` is full of water and built on the ground. If `g = 10 ms^(-2)`, the potential energy of the water in the tank is
A. `5 xx 10^(7) J`
B. `1 xx 10^(8) J`
C. `5 xx 10^(4) J`
D. `5 xx 10^(5) J`
A. `5 xx 10^(7) J`
B. `1 xx 10^(8) J`
C. `5 xx 10^(4) J`
D. `5 xx 10^(5) J`
Correct Answer – A
`P.E = mgh_(1)`, here `h_(1) = (h)/(2)` and `m = rho xx V`.