Heat And Thermodynamics

Internal energy of \(n_1\) moles of hydrogen at temperature '\(T\)' is equal to internal energy of '\(n_2\)' moles of helium at temperature \(2 T\), then the ratio \(\mathrm{n}_1: \mathrm{n}_2\) is

[Degree of freedom of \(\mathrm{He}=3\), Degree of freedom of \(\mathrm{H}_2=5\)]