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What are the waves used for long distance transmission called?

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Important Questions on Basics of Communications

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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 33
Which of the following electromagnetic waves are useful for telecommunication?
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 34
What determines the absorption of radio waves by the atmosphere?
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 35
Which of the following is the disadvantage of FM over AM?
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 36
TV and radar system make use of
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 37
Why is it difficult to transmit audio signals directly?
EASY
JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 38
What is the range of UHF band?
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 39
Modern communication systems use _____.
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 11 - Basics of Communications>Objective Problems [Level 1]>Q 40
Degree of modulation