Explain this phenomenon of the bottle cap

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Reference no: EM131247312

An inverted test tube partially filled with air floats in a plastic water-filled soft drink bottle as shown in Fig. P11.29. The amount of air in the tube has been adjusted so that it just floats. The bottle cap is securely fastened. A slight squeezing of the plastic bottle will cause the test tube to sink to the bottom of the bottle. Explain this phenomenon.

Reference no: EM131247312

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