What is the wavelength range of light used in optical communication?
A. 400 nm to 700 nm
B. 850 nm to 1550 nm
C. 200 nm to 3000 nm
D. 1000 nm to 1500 nm
Explanation:
Optical communication typically uses wavelengths in the range of 850 nm to 1550 nm, which are ideal for fiber optic transmission due to low loss and high efficiency.