If the atmospheric pressure is $P_a$, then the pressure $P$ at depth $h$ below the surface of liquid of density $\rho $ open to the atmosphere is

  • A

    ${p_a} - \frac{{\rho gh}}{2}$

  • B

    ${p_a} - \rho gh$

  • C

    $P_a$

  • D

    ${p_a} + \rho gh$

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