JEE Main 2002 Physics question

Which of the following is used in optical fibres ?

(1)total internal reflectionCorrect
(2)scattering
(3)diffraction
(4)refraction

Answer: (1)

Solution

Light is guided along an optical fibre by repeated total internal reflection at the core–cladding boundary, since the core has a higher refractive index and the angle of

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Question ID VK-037901