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Introductory Physics Homework Help
What is the internal radius of the optical fibre
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[QUOTE="Ajaroy, post: 6002807, member: 642701"] [h2]Homework Statement [/h2] A Capillary tube is made of glass of refractive index n[SUB]1[/SUB] . The outer radius of the tube is R.The tube is filled with a liquid of refractive index n[SUB]2[/SUB] < n[SUB]1[/SUB] .what should be the minimum internal radius of the tube so that any ray that hits the tube would enter the liquid [h2]Homework Equations[/h2][h2]The Attempt at a Solution[/h2] I know that in an optical fibre they are core and cladding.it operates by principle of total internal reflection.i have calculated maximum incident angle possible As i = arcsin √n[SUB]1[/SUB][SUP]2[/SUP] -n[SUB]2[/SUB][SUP]2[/SUP] How to get terms in terms of R and should we consider any size approximations as it is a capillary tube is what I can't understand. If we should consider approximations then how?Please help me [/QUOTE]
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Introductory Physics Homework Help
What is the internal radius of the optical fibre
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