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হোম›একাদশ-দ্বাদশ শ্রেণি›English Version›Information and Communication Technology›C-02 — Communication Systems and Networking›C-02-Q091

C-02-Q091mediumsingle_mcq

Which two portions of the electromagnetic spectrum have played key roles in modern communication?

aGamma rays and X-rays
bRadio waves and microwaves
cVisible light and ultraviolet
dInfrared and gamma rays

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91/256

Jপরবর্তী

এই অধ্যায়ের আরও প্রশ্ন

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-Q099In terrestrial microwave communication, a relay or repeater station is placed after every —
C-02-Q100A satellite placed approximately 36000 km above ground that circles the earth at the same speed of its rotatio
C-02-Q101VSAT stands for —

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