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হোম›একাদশ-দ্বাদশ শ্রেণি›English Version›Information and Communication Technology›C-02 — Communication Systems and Networking›C-02-Q088

C-02-Q088mediumsingle_mcq

The invention of fiber amplifiers for which laser made that wavelength widely used for long distance communication?

a1300nm laser
b1400nm laser
c1500nm laser
d700nm laser

Kপূর্ববর্তী

88/256

Jপরবর্তী

এই অধ্যায়ের আরও প্রশ্ন

C-02-Q089Exchange of information between two devices through electromagnetic waves without wires is known as —
C-02-Q090In the electromagnetic spectrum, what happens as the frequency of a wave increases?
C-02-Q091Which two portions of the electromagnetic spectrum have played key roles in modern communication?
C-02-Q092Radio waves are generally classified as having frequencies between —
C-02-Q093Why are radio waves more commonly used for broadcasting?
C-02-Q094The antenna used to transmit a radio signal has to be how much of the length of the signal's wavelength?
C-02-Q095Radio waves can transmit signals from one part of the earth to another because they are —
C-02-Q096Microwaves are generally classified as having frequencies between —
C-02-Q097Unlike radio waves, microwaves —
C-02-Q098Microwave communication is of which two types?

C-02 — Communication Systems and Networking — সব প্রশ্ন দেখুন (256টি) →