Jee question on communication chapter

 Here are few jee question on communition chapter.

1.the wavelength of carrier wave in modern  optical fiber communication network is close to:

  1. 2400nm
  2. 900nm
  3. 600nm
  4. 1500nm
Ans :1500nm










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If the letter of word VICTORY are arranged in order of a dictionary.then rank of the word victory

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