SSC JE Mechanical Engineering 11 Oct 2020 Shift 1 Papers

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Question : 139 of 200

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The pressure ratio known as critical pressure ratio for maximum discharge through the nozzle is given by:

${p_{2}}/{p_{1}}=({n+1}/{2})^{n\/{n-1}}$
${p_{2}}/{p_{1}}=({2}/{n+1})^{{n-1}\/n}$
${p_{2}}/{p_{1}}=({2}/{n+1})^{n\/{n-1}}$
${p_{2}}/{p_{1}}=({n+1}/{2})^{{n-1}\/n}$

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