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Physics, 02.09.2019 17:30 laurentsofia09
Athin spherical glass shell in air is filled with an unknown liquid. a horizontal parallel light beam is incident on the shell and it is observed that the light is brought to focus on the surface of the shell directly opposite of the incoming beam. what is the refractive index of the liquid?
ie. the answer is 2- i just don't know how they got there
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