A) \[-1\]
B) 0.2
C) 0.1
D) \[-0.25\]
Correct Answer: B
Solution :
\[\eta =\frac{Y}{2(1+\sigma )}\] \[\Rightarrow \] \[\sigma =\frac{Y}{2\eta }-1\] \[=1.2-1=0.2\]
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