Physics - Fluid Question with Solution | TestHub

The surface of water in a water tank of cross section area $750{\mathrm{cm}}^2$ on the top of a house is ' $h$ ' $m$ above the tap level. The speed of water coming out through the tap of cross section area $500{\mathrm{mm}}^2$ is $30\mathrm{cm}/\mathrm{s}$. At that instant $\frac{\mathrm{dh}}{\mathrm{dt}}$ is $\mathrm{x}=10^{-3}\mathrm{m}/\mathrm{s}$. The value of ' x ' will be