Lesson to build on students understanding of refraction, detailing how to calculate the refractive index of a material - includes practicer questions for students.
Ideal for Cambridge iGCSE P7 and more
Developing: Recall and use the equation n= Sin(i)/Sin®
Securing: Use angles of incidence and refraction to calculate the refractive index of optical media.
Exceeding: Apply knowledge to determine the critical angle of different optical media.
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Fantastic resource, I think there is a mistake on slide 7 though. 1.5 = sin 30/1.5. Is something missing from the calculation? I only get an answer of 19 if I do sin 30 / sin 1.5. Would really appreciate it if I am doing something incorrect as Physics is not my specialist subject.
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