A) 420
B) 360
C) 400
D) 320
Correct Answer: D
Solution :
\[n'=n\,\left( \frac{v+{{v}_{O}}}{v-{{v}_{S}}} \right)\,n\Rightarrow 400=n\,\left( \frac{360+40}{360-40} \right)\Rightarrow n=320\,cps\]You need to login to perform this action.
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