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Heat And Thermodynamics

JEE Main 2021 (Online) 25th July Morning Shift

MCQ+4 / -12021
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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