There is a small air bubble inside a glass sphere `(mu=1.5)` of radius 10 cm. The bubble is `4.0cm` below the surface and is viewd normally from the outside. Find the apparent dipth of the bubble.

A small object is embedded in a glass sphere (mu =1.5) of radius 5.0 cm at a distance 1.5 cm left to the centre. Locate the image of the object as seen by an observer standing (a) to the left of the sphere and (b) to the right of the sphere.

An air bubble in glass slab of refractive index 1.5 (near normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness of the slab is,

There is an air bubble of radius 1.0 mm in a liquid of surface tension 0.075Nm^-1 and density 1000 kg m^-3 . The bubble is at a depth of 10 cm below the free surface. By what amount is the pressure inside the bubble greater than the atmospheric pressure? Take g=9.8ms^-2 .

The radius of an air bubble is increasing at the rate of (1)/(2) cm/s. At what rate is the volume of the bubble increasing when the radius is 1 cm?

A soap bubble in vacuum has a radius of 3cm & another soap bubble in vacuum has a radius of 4 cm if the 2 bubbles coalesce under isothermal conditions then what is radius of the new bubble ?

A spherical soap bubble A of radius 2 cm is formed inside another bubble B of radius 4 cm. Show that the radius of a single soap bubble which maintance the same pressure difference as inside the smaller and outside the larger soap bubble is lesser than radius of both soap bubbles A and B.