IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :

21.Process of sending and receiving the information with the help of some suitable system is called

Communication

Tranxmission

Fax

Modem

22.Which of the following pair belongs to the same communication system

Telephony, Fax

Telegraphy, E-mail

Teleprinting, Communication satellite

Telemetry, Mobile Phone

23.Modem is a device which performs

Modulation

Demodulation

Rectification

Modulation and demodulation

24.A certain transmitter radiates 9 kW of power with carrier unmodulated and 10.125 kW when the carrier is modulated. The modulation index is

60%

55%

40%

50%

25.The satellite that is used in ship to shore and shore to ship communication is

Comsat

Marisat

Telstar

Intelstar

More Principles Of Communication QUESTIONS AND ANSWERS available in next pages

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IIT JEE Questions And Answers :: Principles Of Communication: part3