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Three Flat Layers of Transparent Material Are Stacked Upon One

Question 60

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Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n1,the middle has n2 and the bottom one has n3.If n1 < n2 < n3,at what angle of incidence will a ray of light traverse the three layers in a single straight line?


A)
Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n<sub>1</sub>,the middle has n<sub>2</sub> and the bottom one has n<sub>3</sub>.If n<sub>1</sub> < n<sub>2</sub> < n<sub>3</sub>,at what angle of incidence will a ray of light traverse the three layers in a single straight line? A) B) C) D) There is such an angle,but it is not given.
B)
Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n<sub>1</sub>,the middle has n<sub>2</sub> and the bottom one has n<sub>3</sub>.If n<sub>1</sub> < n<sub>2</sub> < n<sub>3</sub>,at what angle of incidence will a ray of light traverse the three layers in a single straight line? A) B) C) D) There is such an angle,but it is not given.
C)
Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n<sub>1</sub>,the middle has n<sub>2</sub> and the bottom one has n<sub>3</sub>.If n<sub>1</sub> < n<sub>2</sub> < n<sub>3</sub>,at what angle of incidence will a ray of light traverse the three layers in a single straight line? A) B) C) D) There is such an angle,but it is not given.
D) There is such an angle,but it is not given.

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