Velocity triangle for a reaction turbine stage is shown in the given figure. (AB = v1= absolute velocity at rotor balde inlet: CB = w1= relative velocity at rotor blade inlet: CE = w2= relative elocity at rotor blade exit and CD = CB)
The ratio of reaction force to impulse force is
(a) CE/CB (b) CD/CE
(c)DE/BD (d) AE/AB