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In the diagram shown Q(iaf)= 80 cal and ...

In the diagram shown `Q_(iaf)= 80` cal and `W_(iaf)= 50 `cal. If W = - 30 cal for the curved path fi,value of Q for path fi, will be

A

60 cal

B

30 cal

C

`-30 cal`

D

`-60 cal`

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The correct Answer is:
D
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