Multiple Choice
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)
B)
C)
D) There is such an angle, but it is not given.
Correct Answer:

Verified
Correct Answer:
Verified
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