Numerical Aperture of Optical Fiber
What is the working principle behind optical fibers?
Total internal reflection occurs only when the angle of incidence is:
The sine of the angle of incidence divided by the sine of angle of refraction equals optical density is called?
Optical fibers are often used in preference to copper wire when transmitting data. Which of the following is not a reason for the preferred use of optical fibers?
In refraction, when ray goes from air to glass at an angle of incidence, which one of these happens?