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Question 62

Which of the following transmission media works on the principle of total internal reflection ?

  1. AOptical fiber cable
  2. BShielded twisted pair cable
  3. CUnshielded twisted pair cable
  4. DCoaxial cable
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Correct answer: (A) Optical fiber cable

Explanation

In optical fibre, light stays inside the glass core by total internal reflection at the core-cladding boundary.

From DSSSB TGT Computer Science Practice Set 2

This is question 62 of DSSSB TGT Computer Science Practice Set 2. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.