# GATE2012-12

For uniform laminar flow(in the x-direction) past a flat plate at high Reynolds number, the local boundary layer thickness ($\delta$) varies with the distance along the plate (x) as
1. $\delta$ $\propto$ x$^{1/4}$
2. $\delta$ $\propto$ x$^{1/3}$
3. $\delta$ $\propto$ x$^{1/2}$
4. $\delta$ $\propto$ x