Post-UTME Physics 2007 Objective — Question 7
Question 7 of 10 from the Post-UTME Screening (Post-UTME) Physics 2007 Objective paper, with the correct answer and a full explanation.
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If the polarizing angle for a given optical material is 49 degrees, calculate the refractive index of the material
- A. 1.15Correct
- B. 0.75
- C. 0.66
- D. 1.75
Explanation
By Brewster's law, refractive index = tan(polarizing angle) = tan(49) = 1.15.
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