PhysicsLight: refractionJAMB
Find the speed of light in a medium of refractive index 1.33. (c = 3 × 10⁸ m/s)
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Answer: D. 2.26 × 10⁸ m/s
v = c/n = 3 × 10⁸ ÷ 1.33 ≈ 2.26 × 10⁸ m/s.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.