For a diatomic gas, if \({\gamma }_{1}=\left(\frac{Cp}{Cv}\right)\) for rigid molecules and \({\gamma }_{2}=\left(\frac{…

For a diatomic gas, if \({\gamma }_{1}=\left(\frac{Cp}{Cv}\right)\) for rigid molecules and \({\gamma }_{2}=\left(\frac{Cp}{Cv}\right)\) for another diatomic molecules, but also having vibrational modes. Then, which one of the following options is correct ? (Cp and Cv are specific heats of the gas at constant pressure and volume)

[JEE Main 2025, 22 Jan (Shift 2)]