Given : $\sigma$ is the compressibility of water, $\rho$ is the density of water and $K$ is the  bulk modulus of water. What is the energy density of water at the bottom of a lake $‘h’$  metre deep ?

  • A

    $\frac{1}{2}\sigma {(h\rho g)^2}$

  • B

    $\frac{1}{2}\sigma {(h\rho g)}$

  • C

    $\frac{1}{2}\frac{{h\rho g}}{\sigma }$

  • D

    $\frac{{h\rho g}}{\sigma }$

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