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GATE Mechanical 2024 | Question: 8

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​​​​​Consider incompressible laminar flow over a flat plate with freestream velocity of $u_{\infty}$. The Nusselt number corresponding to this flow velocity is $N u_{1}$. If the freestream velocity is doubled, the Nusselt number changes to $\mathrm{Nu}_{2}$. Choose the correct option for $N u_{2} / N u_{1}$.

  1. $\sqrt{2}$
  2. $2$
  3. $1.26$
  4. $1$
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