Back to COMMUNICATION SYSTEMS
JEE PHYSICS MCQ: COMMUNICATION SYSTEMS
1
Medium
1 of 1
Understanding
+4 | -1
In satellite communication, the communication satellite;
View answer and explanation
Correct option: C
Receives the coming modulated microwave signal, amplifies it and returns it to earth at a different frequency
Option C (Receives the coming modulated microwave signal, amplifies it and returns it to earth at a different frequency) is correct because communication satellites act as repeaters, amplifying and retransmitting signals at different frequencies.
More Questions from COMMUNICATION SYSTEMS
Practice All Chapter MCQs →
Is it necessary for a transmitting antenna to be at the same height as that of the receiving antenna for line of sight communication? A TV transmitting antenna is tall. How much service area can it cover, if the receiving antenna is at the ground level?
The radio waves of frequency 30 MHz to 300 MHz belong to
In space communication, the sound waves can be sent from one place to another
The wavelength of the carrier waves in a modern optical fibre communication network is close to
In an amplitude modulated wave for audio frequency of 500 cycle/second, the appropriate carrier frequency will be
modulation in FM means