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i need help with physics, calculalting index

Physics
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a light beam in air is incident on a glass slab with an incident angle of 32o. it is found that the angle of refraction is 20o. what is the index of refraction of the glass slab?

Apr 9th, 2015

refractive index of 2nd medium with respect to the first.
μ2/μ1=sine(angle of incidence) / sine(angle of refraction)

μ2 = sin 32 / sin 20  ( since μ1 = 1)

μ2 = 0.5299/0.3420 = 1.54..........................Answer.


Apr 9th, 2015

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