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A U-tube of cross section A and 2A conta...

A U-tube of cross section A and 2A contains liquid of density `rho`. Initially, the liquid in the two arms are held with a level difference h as shown in figure. After being released the levels equalize after some time. The work done by gravity forces on the liquid in the process is :

A

`(2)/(3) rho Agh^(2)`

B

`rho Agh^(2)//3`

C

`rho Agh^(2)//6`

D

`(3)/(4) rho Agh^(2)`

Text Solution

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The correct Answer is:
B
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