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Questions  

In the indicator diagram shown in fig. the net amount of work done is
 

a
negative
b
positive
c
zero
d
infinity

detailed solution

Correct option is A

It is obvious from fig. that process 1 is clockwise, there{ore W1 is positive. On the other hand, process 2 is anticlockwise and work done W2, is negative. As W2 >W1and hence net work done is negative.

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