NEET Physics MCQs

The excess pressure inside a soap bubble of radius $R$ is given by:

The force required to detach a circular ring of radius $r$ from the surface of a liquid with surface tension $S$ is:

Surface tension is caused by:

The unit of surface tension is:

If the radius of a soap bubble is doubled, the excess pressure inside becomes:

The surface tension of a liquid tends to:

A spherical soap bubble has an excess pressure inside it. If the radius of the bubble is doubled, the excess pressure inside will:

The excess pressure inside a soap bubble of radius 1 cm is 4 Pa. The excess pressure inside another soap bubble of radius 2 cm will be:

Two soap bubbles of radii $r_1$ and $r_2$ are joined by a narrow tube. Which of the following correctly relates their excess pressures $P_1$ and $P_2$?

The excess pressure inside a liquid drop is given by: