Optical Communication Unit-1 Quiz

Major Advantages of Optical fiber

• High Bandwidth, high Loss

• Low Bandwidth, Low Loss

• High Bandwidth, Low Loss

Refractive index FORMULA?

• n=c

• n=v

• n=v/c

• n=c/v

Multimode step index fibers have a bandwidth of

• 2 to 30 MHZ Km

• 6 to 50 MHZ km

• 10 to 40 MHZ km

• 8 to 40 MHZ km

At what speed an optical fiber can transmit data to a very long distance

• 15GB/second

• 10GB/second

• 20GB/second

• 5GB/second

Which of the following is a content of an Optical fiber?

• Jacket

• Core

• Buffer

• All of the above

The performance characteristics of multimode graded index fibers are ___________

• Better than multimode step index fibers

• Same as multimode step index fibers

• Lesser than multimode step index

• Negligible

Multimode step index fiber has a large core diameter of range is ___________

• a) 100 to 300 μm

• b) 100 to 300 nm

• c) 200 to 500 μm

• d) 200 to 500 nm

Single mode fiber was designed to support

• Attenuation

  curve

• Fibre

  as zero dispersion

• Early

  large haul transmission

• Negative

  dispersion

Multi

mode fibers are used in

• LANS

• WANS

• MANS

• WLANS

Glass

fibre initial strength at

• 100°F(520°c)

• 100°F(540°c)

• 100°F(560°c)

• 100°F(500°c)