# GATE Mechanical 2014 Set 2 | Question: 12

For laminar forced convection over a flat plate, if the free stream velocity increases by a factor of $2$, the average heat transfer coefficient

1. remains same
2. decreases by a factor of $\sqrt{2}$
3. rises by a factor of $\sqrt{2}$
4. rises by a factor of $\sqrt{4}$

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