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COMMUNICATION SYSTEM - Topic Wise Multiple Choice Questions (MCQ)

Topic Wise free Communication System MCQ for 11th 12th exam Practice Multiple Choice Questions and answer for JEE-mains State CET Engineering Entrance GATE free Online Test



1 )

Type of communication Possible by Modem duplex is ______

Half duplex
Simplex
Double Duplex
Full duplex


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2 )

To transmit 1KHz frequency signal, wave length of the signal should be _______ m.

3 × 10^3
3 × 10^5
3 × 10^7
3 × 10^9


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3 )

What should be the minimum length of the antenna capable of emitting audio signal of wave length λ?

(λ)
(λ/2)
(λ/4)
(λ/6)


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4 )

_______ is used as a medium in space communication

Two wire line
Space
Amplifier
Optical fibre


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5 )

The band width of Audio signal is

20 HZ
20 KHZ
20 MHZ
20 GHZ


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