In an impulse reaction turbine stage, the heat drop in fixed and moving blades are 20 kJ/kg and 30 kJ/kg respectively. The degree of reaction for this stage will be
1
\(\frac{3}{5} \)
2
\(\frac{5}{3}\)
3
\(\frac{2}{5}\)
4
\(\frac{5}{2}\)
5
None of these