Answered: Lake Ontario A point source of light is… | bartleby

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I am having trouble really seeing what is happening in this problem like the diagram how do I solve this?

Lake Ontario
A point source of light is located 4.44 m below the surface of a large lake of clear, but contaminated, water (Lake Ontario, where n = 1.3). Find the radius of the largest circle on the lake's surface through which light coming from the
source can emerge into the air.
radius=

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