Modern Physics 7 Question 84

14. The wavelength of the carrier waves in a modern optical fibre communication network is close to

(Main 2019, 8 April I)

(a) $2400 nm$

(b) $1500 nm$

(c) $600 nm$

(d) $900 nm$

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Solution:

  1. In optical fibre communication network, the signals are transmitted by laser light operating in range of $1310 nm-1550$ nm.

So, the closest value is $1500 nm$.



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