While designing a Pelton wheel, the velocity of the wheel ‘u’ is (where: Ku = Speed ratio, H = Net head of turbine, g = Acceleration due to gravity)

While designing a Pelton wheel, the velocity of the wheel ‘u’ is (

1.	While designing a Pelton wheel, the velocity of the wheel ‘u’ is (where: Ku = Speed ratio, H = Net head of turbine, g = Acceleration due to gravity)
A.	\(K_u \sqrt{gH}\)
B.	\(2K_u \sqrt {gH}\)
C.	\(K_u \sqrt{2gH} \)
D.	\(2Ku \sqrt {2gH}\)
Answer» D. \(2Ku \sqrt {2gH}\)