Which of the following is the dimensional formula for the specific speed of a turbine?
1
\(\rm M^{\frac{1}{2}}L^{\frac{3}{4}}T^{\frac{-5}{2}}\)
2
\(\rm M^{\frac{1}{2}}L^{\frac{-1}{4}}T^{\frac{-5}{2}}\)
3
\(\rm L^{\frac{3}{4}}T^{\frac{-3}{2}}\)
4
\(\rm M^{\frac{1}{2}}L^{\frac{-3}{4}}T^{\frac{-5}{2}}\)