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



IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part3 : 26 to 30

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

26.Electronic transmission of a document to a distant place via telephone line is called

Fax
Modem
E-mail
Telephone

27.Which of the following is use for analogue to digital conversion ?

Amplitude modulation
Pulse code modulation
Frequency modulation
Phase modulation

28.If the wavelength of the electromagnetic radiations is doubled, frequency of the electromagnetic radiations will be

same as earlier
half the earlier
double the earlier
four times the earlier

29.The optical source is used to

convert electrical energy into optical energy
deted the signal
demodulate the electrical signal
All of the above

More Principles Of Communication QUESTIONS AND ANSWERS available in next pages

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