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Define the following with respect to optical fiber communication : (i) Critical angle (ii) Snells law with suitable diagrams.
written 6.9 years ago by gravatar for teamques10 teamques10 ★ 70k modified 3.8 years ago by gravatar for Sharad Sharad • 160

Subject: Advance Communication System

Difficulty: Medium

Marks: 4 marks
advanced communication system
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written 3.8 years ago by gravatar for Sharad Sharad • 160

Critical angle: (2M) It is smallest possible angle of incidence at which light rays are totally reflected at an interface between substances of different refractive indices. Critical angle ($Ø_c$) = $\sin^{-1}( \frac{n_2}{n_1})$

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Snell’s law:

  1. How a light ray reacts when it meets the interface of two transmissive materials that have …

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