Question

8. If we place an optical detector in front of a fiber where the light intensity will be maximum (1 Point) when the fiber is exactly aligned with the detector. when the fiber is shifted extreme right from the detector. A O when the fiber is shifted extreme left from the detector. when the fiber is shifted 1 mm away from the right side of the detector.​

Answer 1

Acceptance angle is the maximum angle at which light may enter into the fiber in order to be propagated. Hence the light incident on the fiber is less than the acceptance angle, the light will propagate in the fiber and will be lost by radiation. 30.