A block of volume `V` and density `sigma_(b)` is placed in liquid of density `sigma_(1)(sigma_(1) gt sigma_(b))`, then block is moved upward upto a height `h` and it is still in liquid. The increase in gravitational energy of the block is :A. `sigma_(b) Vgh`B. `(sigma_(b) + sigma_(l)) Vgh`C. `(sigma_(b) - sigma_(l)) Vgh`D. None of these

A block of volume `V` and density `sigma_(b)` is placed in liquid of d

1.	A block of volume `V` and density `sigma_(b)` is placed in liquid of density `sigma_(1)(sigma_(1) gt sigma_(b))`, then block is moved upward upto a height `h` and it is still in liquid. The increase in gravitational energy of the block is :A. `sigma_(b) Vgh`B. `(sigma_(b) + sigma_(l)) Vgh`C. `(sigma_(b) - sigma_(l)) Vgh`D. None of these
Answer» Correct Answer - C

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