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Perspex is a form of transparent plastic. It has a refractive index n = 1.50. A ray of light strikes the flat surface of a Perspex block with an angle of incidence of 40". What will be the angle of refraction? |
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Answer» Answer: the REFRACTIVE index = 0.428 Explanation: n=1.5 i =40° r = ? n = sini/SINR => 1.5= SIN40/ sinr =>SIN r= sin40°/1.5 =0.643/1.5=0.428 |
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