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A gas (lambda=1.3) is enclosed in an in...

A gas `(lambda=1.3)` is enclosed in an insulated vessel fitted with insulating piston at a pressure of `10^(5)N//m^(2)` . On suddenly pressing the piston the volume is reduced to half the initial volume. The final pressure of the gas is

A

`2^(0.7)xx10^(5)`

B

`2^(1.3)xx10^(5)`

C

`2^(1.4)xx10^(5)`

D

None of these

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The correct Answer is:
B
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