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  9. Q60

APSC CCE 2022 · Question 60 of 176

Consider the following statements: (i) Optical fibre communication is based on the principle of refraction of light. (ii) Optical fibre communication is based on the principle of total internal reflection of light. (iii) In optical fibre communication, light is the carrier wave. (iv) Optical fibre communication permits communication over short distances only. Select the correct statement(s) using the codes given below.

General Science

  1. AOnly (i) and (ii)
  2. BOnly (ii)
  3. COnly (ii) and (iii)Correct
  4. DOnly (iii) and (iv)

Answer: C. Only (ii) and (iii)

Explanation

Optical fibre communication works on the principle of total internal reflection with light as the carrier wave, and it permits communication over long (not only short) distances.

Source: APSC CCE Prelims 2022 GS Paper-I, official Series-D key

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