(III) A beam of light enters the end of an optic fiber as shown in Fig. 23–58. (a) Show that we can guarantee total internal reflection at the side surface of the material (at point A), if the index of refraction is greater than about 1.42. In other words, regardless of the angle a, the light beam reflects back into the material at point A, assuming air outside. (b) What if the fiber were immersed in water? IB Air Transparent material FIGURE 23-58 Problem 40.

(III) A beam of light enters the end of an optic fiber as shown in Fig. 23–58. (a) Show that we can guarantee total internal reflection at the side surface of the material (at point A), if the index of refraction is greater than about 1.42. In other words, regardless of the angle a, the light beam reflects back into the material at point A, assuming air outside. (b) What if the fiber were immersed in water? IB Air Transparent material FIGURE 23-58 Problem 40.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.2P: A tungsten filament is heated to 2700 K. At what wavelength is the maximum amount of radiation...

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