A person and a dolphin observe one another through a glass barrier that has thic

Question

A person and a dolphin observe one another through a glass barrier that has thickness t. The dolphin is a distance d from the glass. An air bubble exists directly in the middle of the glass.

Part A - Which expression gives how far from the glass the dophin seems from the person's perspective?

nwater = 4/3, nglass = 3/2

nwater = 4/3, nglass = 3/2

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Part B - Which expression gives the apparent distance of the bubble from the near surface of the glass from the person's perspective?

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Part C - Which expression gives the apparent distance of the bubble from the near surface of the glass from the dolphin's perspective?

Explanation / Answer

Part A: d=32d

Part B: d= 13t  

Part C: d=49t  

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