An ideal gas at atmospheric pressure is adiabatically compressed so that its density becomes $32$ times of its initial value. If the final pressure of gas is $128$ atmosphers, the value of $\gamma$ the gas is
  • A$1.5$
  • B$1.4$
  • C$1.3$
  • D$1.6$
JEE MAIN 2013, Medium
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