The isothermal bulk modulus of a gas at a pressure $P$ is (where $\gamma$ is the ratio of specific heat capacities of the gas).

  • A
    $\gamma$
  • B
    $\gamma P$
  • C
    $P$
  • D
    $\frac{\gamma}{P}$

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Which of the following moduli of elasticity is possible in solids,liquids,and gases?

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