JEE Main 2019 Physics question

Physics Electromagnetic Waves JEE Main 2019

The wavelength of the carrier waves in a modern optical fiber communication network is close to:

(A)1500 nmCorrect
(B)600 nm
(C)900 nm
(D)2400 nm

Answer: (A)

Solution

TOPIC NOT IN SYLLABUS: Communication Systems. Optical fibre networks mostly use ≈ 1550 nm (low-loss window).

Question ID VK-009236