(a) Discuss the construction of optical fibre. Find the expression fo…
Previous year question for Advanced Engineering Physics.
Question
(a) Discuss the construction of optical fibre. Find the expression for acceptance angle and numerical aperture in case of optical fibre. (12)
(b) An optical fibre has a numerical aperture of 0.2 and a cladding refractive index of 1.59. Determine the acceptance angle for the fibre in water which has a refractive index of 1.33. (8)
- Year: 2022
- Subject: Advanced Engineering Physics