Answer to Question #306525 in Optics for Parth

Question #306525

Numerical aperture of a fibre is 0.5 and core refractive index is 1.48. Find cladding refractive index and acceptance angle .

Expert's answer

"\\beta=\\sqrt{n_2^2-n_1^2}=1.09,"

"\\alpha=\\arctan 0.5=26.6\u00b0."

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