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Homework Statement
A light beam incident on a glass slide at an angle of 60 ˚, being partly reflected and partly refracted. It notes that reflected and refracted beams are each at 90 ˚ What is the refractive index of glass?
Homework Equations
n_{1}sinσ_{1} = n_{2}sinσ_{2}
The Attempt at a Solution
σ_{1} = 60°
σ_{2} = 30°
sinσ_{1} / sinσ_{2} = n
So, is this right?
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