A) 0.66
B) 0.06
C) 0.65
D) 0.69
Correct Answer: B
Solution :
\[\omega =\frac{({{\mu }_{v}}-{{\mu }_{R}})}{({{\mu }_{y}}-1)}\]\[\Rightarrow \frac{(1.69-1.65)}{(1.66-1)}=0.06\]
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