Thermodynamics: JEE Main 2021 Physics question

JEE Main 2021 · 25 Jul, Morning shift · Q7486

JEE Main 202125 Jul, Morning shiftPhysicsMediumThermodynamics163× since 2002

A monoatomic ideal gas, initially at temperature T₁ is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T₂ by releasing the piston suddenly. If l₁ and l₂ are the lengths of the gas column, before and after the expansion respectively, then the value of

{{{T_1}} \over {{T_2}}}

will be :

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JEE Main 2021 Thermodynamics Question with Solution (25 Jul Morning shift, Q7486) | JEE Arc