Introduction to Optical Fiber » Exercise - 17. Which of the following is not part of the optical spectrum ? (a) infrared (b) ultraviolet (c) visible color (d) X-rays
Optical Fiber Waveguides » Exercise - 15. The numerical aperture of a fiber if the angle of acceptance is 15 degrees, is : (a) 017 (b) 0.26 (c) 0.50 (d) 0.75
Introduction to Optical Fiber » Exercise - 12. The band of light wavelengths that are too long to be seen by the human eye : (a) amber (b) visible (c) infrared (d) ultraviolet