Maximum blade efficiency of a Parson's turbine is given by: (\[\alpha \] is nozzle angle)

\[\frac{{{\cos }^{2}}\alpha }{1+2{{\cos }^{2}}\alpha }\]

\[\frac{\cos \alpha }{1+2{{\cos }^{2}}\alpha }\]

\[\frac{2{{\sin }^{2}}\alpha }{1+2{{\sin }^{2}}\alpha }\]

\[\frac{2{{\cos }^{2}}\alpha }{1+2{{\cos }^{2}}\alpha }\]

Maximum blade efficiency of a Parson's turbine is given by: �

1.	Maximum blade efficiency of a Parson's turbine is given by: (\[\alpha \] is nozzle angle)
A.	\[\frac{{{\cos }^{2}}\alpha }{1+2{{\cos }^{2}}\alpha }\]
B.	\[\frac{\cos \alpha }{1+2{{\cos }^{2}}\alpha }\]
C.	\[\frac{2{{\sin }^{2}}\alpha }{1+2{{\sin }^{2}}\alpha }\]
D.	\[\frac{2{{\cos }^{2}}\alpha }{1+2{{\cos }^{2}}\alpha }\]
Answer» E.

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Maximum blade efficiency of a Parson's turbine is given by: (\[\alpha \] is nozzle angle)

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