WAEC Physics 2012 Objective — Question 28
Question 28 of 50 from the West African Examinations Council (WAEC) Physics 2012 Objective paper, with the correct answer and a full explanation.
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The speed of light in a certain medium is V while its speed in a vacuum is C. The absolute refractive index of the medium is
- A. A. C + V
- B. B. C/VCorrect
- C. C. V/C
- D. D. C - V
Explanation
Absolute refractive index of a medium = speed of light in vacuum / speed of light in the medium = C/V.
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