A penstock supplies water to Pelton turbine with a head of \(80 \mathrm{~m}\). One-third of head is lost in penstock due to friction. The flow rate of water from the nozzle is \(2.5 \mathrm{~m}^{3} / \mathrm{sec}\). The deflection angle of the jet is \(165^{\circ}\). Speed ratio, \(\mathrm{Cu}=0.45\) and \(\mathrm{Cv}=\) 0.95. Calculate power developed by the turbine and its hydraulic efficiency.