MCQ
An air bubble of radius $r$ in water is at a depth $h$ below the water surface at some instant. If $P$ is atmospheric pressure and $d$ and $T$ are the density and surface tension of water respectively. The pressure inside the bubble will be:
- A$\text{P}+\text{h}\rho\text{g}-\big(\frac{4\text{T}}{\text{r}}\big)$
- B$\text{p}+\text{h}\rho\text{g}-\big(\frac{2\text{T}}{\text{r}}\big)$
- ✓$\text{P}+\text{h}\rho\text{g}+\big(\frac{2\text{T}}{\text{r}}\big)$
- D$\text{P}+\text{h}\rho\text{g}\big(\frac{4\text{T}}{\text{r}}\big)$
