$1.$ For C$1$ and C$2$ calculate efficiency and explain which cyclone is more efficient

and why? How does the cyclone diameter affect efficiency and why? Formual $=($WH$/$wcl$-$wcf$)*100$

$2.$ For C$2(10$ m$/$s$)$ and C$2(5$ m$/$s$)$ calculate efficiency and explain the effect of inlet velocity on efficiency $,$ formual $=($ Wh$2+$Wh$3/($wcl$-$wcf$))*100$