Physics Chapter 4 Question

Question

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?

Comments

chapter 4关系到体积，压力和温度。你这提问已经是F5 chapter 2的了，关系到水的密度，地心引力，深度，气压了

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如果答案是C，那它的深度应该是60m

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我朋友有做到C（书本的答案），可是我忘了
当时我们都是F4 罢了

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问回他，找回去那本书

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好的