Optical Communication MCQ Questions & Answers | ECE

A. True

B. False

A. 0.1dB/km

B. 0.2dB/km

C. 0.3dB/km

D. 0.4dB/km

A. km

B. dB

C. dB/km

D. Coulomb's

A. Mie scattering

B. Rayleigh scattering

C. Stimulated Raman scattering

D. Stimulated Brillouin scattering

A. Air

B. Silica

C. Water

D. Plasma

A. Makes an angle equal to acceptance angle with the axial ray

B. Makes an angle equal to critical angle with the axial ray

C. Travels parallel equal to critical angle with the axial ray

D. None of the above

A. 30.46ns/km

B. 31.23ns/km

C. 28.12ns/km

D. 26.10ns/km

A. $$N\left( r \right) = n1{\left[ {1 - 2\Delta {{\left( {\frac{{{r^2}}}{a}} \right)}^2}} \right]^{\frac{1}{2}}};r < a$$

B. $$N\left( r \right) = n1{\left[ {3 - 2\Delta {{\left( {\frac{{{r^2}}}{a}} \right)}^2}} \right]^{\frac{1}{2}}};r < a$$

C. $$N\left( r \right) = n1{\left[ {5 - 2\Delta {{\left( {\frac{{{r^2}}}{a}} \right)}^2}} \right]^{\frac{1}{2}}};r > a$$

D. None of the above

A. 2846

B. 2592

C. 2432

D. 2136

A. Lower than Brillouin threshold

B. Higher than Brillouin threshold

C. Same as Brillouin threshold

D. Higher than Rayleigh threshold