A ray of light is incident on a glass block as shown in t...
A ray of light is incident on a glass block as shown in the diagram above. If the reflected and the retracted rays are perpendicular to each other, what is the refractive index of the glass relative to air.?
1.65
1.58
1.52
1.50
1.48
Correct answer is E
No explanation has been provided for this answer.
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