Multiple choice general knowledge science & technology

Light that enters on one end of a fiber optic cable reaches the other end by means of

  1. dispersion

  2. magnification

  3. total internal reflection

  4. repeated intensification
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fiber optic cables transmit light through total internal reflection, where light travels through the core by repeatedly reflecting off the cladding boundary at angles greater than the critical angle. This principle allows signals to travel long distances with minimal signal loss. Dispersion and magnification are optical phenomena but not the transmission mechanism, and intensification doesn't occur.

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