Chapter 4
An air bubble has a volume of V when it was released from a submarine at a depth of 90m.What is the depth when the volume of the air bubble has increased to 4V?[Pₐₜₘ=10m of water)
A. 5m
B.10m
C.15m
D.22.5m
The answer I get is D.But why the answer sheet says the correct answer is C?