Finding Angle of Refraction with Given Angles

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The discussion centers on finding the angle of refraction using Snell's Law, which relates the angles of incidence and refraction to the indices of refraction of the two media. Participants emphasize the importance of understanding the formula: n1 * sin(θ1) = n2 * sin(θ2), where n represents the refractive indices and θ the angles. A suggestion is made to consult HyperPhysics for further clarification and examples. The conversation highlights the relevance of Snell's Law in optics and its application in various scenarios. Understanding this principle is crucial for accurately calculating refraction in different mediums.
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does anybody know formula for finding angle of refraction with given angles of incidence in the medium and the angle of refraction?
 
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I might try looking http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html"

Casey
 
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Snell's law. Again.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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