The critical pressure ratio \[\left( \frac{{{p}_{2}}}{{{p}_{1}}} \right)\] for maximum discharge through a nozzle is:

\[{{\left( \frac{2}{n-1} \right)}^{\left( \frac{n}{n\,\,+\,\,1} \right)}}\]

\[{{\left( \frac{2}{n+1} \right)}^{\left( \frac{n\,\,-\,\,1}{n} \right)}}\]

\[{{\left( \frac{2}{n+1} \right)}^{\left( \frac{n}{n\,\,-\,\,1} \right)}}\]

\[{{\left( \frac{2}{n-1} \right)}^{\left( \frac{n\,\,+\,\,1}{n} \right)}}\]

The critical pressure ratio \[\left( \frac{{{p}_{2}}}{{{p}_{1}}} \righ

1.	The critical pressure ratio \[\left( \frac{{{p}_{2}}}{{{p}_{1}}} \right)\] for maximum discharge through a nozzle is:
A.	\[{{\left( \frac{2}{n+1} \right)}^{\left( \frac{n\,\,-\,\,1}{n} \right)}}\]
B.	\[{{\left( \frac{2}{n+1} \right)}^{\left( \frac{n}{n\,\,-\,\,1} \right)}}\]
C.	\[{{\left( \frac{2}{n-1} \right)}^{\left( \frac{n}{n\,\,+\,\,1} \right)}}\]
D.	\[{{\left( \frac{2}{n-1} \right)}^{\left( \frac{n\,\,+\,\,1}{n} \right)}}\]
Answer» C. \[{{\left( \frac{2}{n-1} \right)}^{\left( \frac{n}{n\,\,+\,\,1} \right)}}\]

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The critical pressure ratio \[\left( \frac{{{p}_{2}}}{{{p}_{1}}} \right)\] for maximum discharge through a nozzle is:

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