The excess pressure in a soap bubble is double that in other one. The ratio of their volume is .............
$1: 2$
$1: 8$
$1: 4$
$1: 1$
A long cylindrical glass vessel has a small hole of radius $'r'$ at its bottom. The depth to which the vessel can be lowered vertically in the deep water bath (surface tension $T$) without any water entering inside is
What is the pressure inside the drop of mercury of radius $3.00 \;mm$ at room temperature? Surface tension of mercury at that temperature $\left(20\,^{\circ} C \right)$ is $4.65 \times 10^{-1}\; N m ^{-1} .$ The atmospheric pressure is $1.01 \times 10^{5}\; Pa$. Also give the excess pressure inside the drop.
Derive the formula for excess of pressure (pressure difference) inside the drop and bubble.
If the radius of a soap bubble is four times that of another, then the ratio of their excess pressures will be
An air bubble in a water tank rises from the bottom to the top. Which of the following statements are true