PhysicsLight: refractionWAEC
Light passes from air into glass of refractive index 1.5. If the angle of incidence is 30°, the sine of the angle of refraction is
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Answer: D. 1/3
n = sin i/sin r, so sin r = 0.5/1.5 = 1/3.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.