CBSE Class 12-science Answered
the refracive index of a glass is 1.5. A sphere of this glass is immersed in water having refractive index as 4/3 .The critical angle for light rays originating within the sphere
Asked by varghesemc100 | 21 Feb, 2019, 11:06: AM
Expert Answer
For TIR critical angle is given as
Sinθc = refractive index of surrounding/refractive index of material
Sinθc = (4/3)/1.5 = 8/9
So θc = Sin^-1(8/9)
Answered by Ankit K | 21 Feb, 2019, 15:55: PM
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