An air bubble of volume 2 cm3 is formed 20m und...
An air bubble of volume 2 cm3 is formed 20m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10m of water?
6cm3
4cm3
3cm3
2cm3
1cm3
Correct answer is A
P1V1 = P2V2
When the bubble comes to the surface and pressure drops 3 times, the volume increases 3 times.
V2 = 3 x 2
= 6 cm3