IIT JEE : Principles Of Communication QUESTIONS AND ANSWERS :: part3 : 1 to 5

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

1.Data communicated by optical fibres system is generally

digital

analog

modulated

unmodulated

2.In AM wave the modulation index is 100%. If the carrier is suppressed the percentage saving in power will be

66.6%

50%

75%

None of these

3.Absorption of radiowaves by atmosphere depends upon

distance from transmitter

polarization of wave

polarization of atmosphere

frequency

4.A 500 W carrier is amplitude modulated with modulation index of 60%. What will be total power of modulated wave

640.5 W

590 W

780 W

450 W

5.In optical fibre, propagation angle of light must be less than or equal to

incident angle

refraction angle

reflection angle

critical angle

More Principles Of Communication QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

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