For an adiabatic expansion of an ideal gas, the fractional change in its pressure is equal to (where $\gamma$ is the ratio of specific heats):
  • A$-\gamma \frac{ dV }{ V }$
  • B$-\gamma \frac{ V }{ dV }$
  • C$-\frac{1}{\gamma} \frac{ dV }{ V }$
  • D$\frac{ d V }{ V }$
JEE MAIN 2021, Medium
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