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Q. Which of the following is an equivalent cyclic process corresponding to the thermodynamic cyclic given in the figure ?
where, $1 \to 2$ is adiabatic.
(Graphs are schematic and are not to scale)Physics Question Image

JEE MainJEE Main 2020Thermodynamics

Solution:

In process 2 to 3 pressure is constant & in process 3 to 1 volume is constant which is correct only in option 4.
Correct graph is

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