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Light travels from rarer medium  1 to denser medium  2. Angle of incidence  & refraction are  45 degree&  30 to the power of 0 resp. (i)  Calculate the  refractive  index  of second medium with respect to the first. (ii) Calculate the  refractive  index  of the  first medium  with respect to the second
Asked by sisugsgsgsysyhshz | 09 Jun, 2017, 03:26: PM
answered-by-expert Expert Answer
begin mathsize 12px style Angle space of space incidence space is space straight i equals 45 degree Angle space of space refraction space is space straight r equals 30 degree left parenthesis straight i right parenthesis space Refractive space index space of space second space medium space straight w. straight r. straight t space first space medium space is straight mu presubscript 1 subscript 2 equals sini over sinr equals fraction numerator sin 45 over denominator sin 30 end fraction equals fraction numerator begin display style bevelled fraction numerator 1 over denominator square root of 2 end fraction end style over denominator begin display style bevelled 1 half end style end fraction equals fraction numerator 2 over denominator square root of 2 end fraction equals 1.41 left parenthesis ii right parenthesis space Refractive space index space of space first space medium space straight w. straight r. straight t space second space medium space is straight mu presubscript 2 subscript 1 equals fraction numerator 1 over denominator straight mu presubscript 1 subscript 2 end fraction equals fraction numerator 1 over denominator 1.41 end fraction equals 0.707 end style
Answered by Romal Bhansali | 09 Jun, 2017, 03:48: PM

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