PhysicsLight: refractionWAEC
A coin lies at the bottom of water 12 cm deep. If the refractive index of water is 4/3, how deep does the coin appear?
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Answer: B. 9 cm
Apparent depth = real depth ÷ n = 12 ÷ 4/3 = 9 cm.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.