In a laminar and turbulent boundary layer over the entire length of plate, the boundary layer thickeners at a distance x from leading edge varies respectively as
1
\({x^{\frac{1}{2}}},\;{x^{\frac{1}{5}}}\)
2
\({x^2},\;{x^{\frac{1}{7}}}\)
3
\({x^{\frac{4}{5}}},\;{x^{\frac{1}{2}}}\)
4
\({x^{\frac{1}{2}}},\;{x^{\frac{4}{5}}}\)