A beaker contains a fluid of density $\rho kg/m^3$ , specific heat $SJ/kg^{\circ}C$ and viscosity $n$ The beaker is filled up to height h. To estimate the rate of heat transfer per unit are $(Q/A)$ by convection when beaker is put on a hot plate, a student proposes that it should depend on $n$. $\bigg(\large\frac{S \Delta \theta}{h}\bigg)$ and $\bigg(\large\frac{1}{\rho g}\bigg)$ When $\Delta \theta (in \; ^{\circ}C)$ is the difference in the temperature between the bottom and top of the fluid. In that situation the correct option for $(Q/A)$ is :

Question

$\begin{array}{1 1} n \frac{S \Delta \theta}{h} \\ n \bigg(\frac{S \Delta \theta}{h}\bigg)\bigg( \frac{1}{p g}\bigg) \\0 \\ 1 \end{array}$