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A ray of light travelling in air falls on a transparent medium of refractive index 1.6.The incident ray makes an angle 53 with the normal.What is the angles of refraction in medium?
Asked by nisha_vini29 | 10 Mar, 2017, 02:15: PM
answered-by-expert Expert Answer

begin mathsize 12px style Hi space Nisha comma According space to space Snell apostrophe straight s space law comma sini over sinr equals straight n subscript straight r over straight n subscript straight i equals straight n subscript straight r space space space space space space space space space space space space space space space space space space space space space As space straight n subscript straight i equals 1 space for space air therefore sinr equals sini over straight n subscript straight r equals fraction numerator sin 53 over denominator 1.6 end fraction equals fraction numerator 0.799 over denominator 1.6 end fraction equals 0.5 therefore straight r equals sin to the power of negative 1 end exponent 0.5 equals 30 degree end style

Answered by | 10 Mar, 2017, 06:27: PM

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