Physics – Communication Systems – TEST (MCQs Maharashtra 12th Board)
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#1. What is the frequency normally used for television broadcasts?
#2. The troposphere reflects waves in the frequency range
#3. Very high frequencies normally propagate as
#4. Line of sight propagation using troposphere is used in the frequency range
#5. Space wave propagation is suitable for waves in the frequency range
#6. VHF radio signals are propagated
#7. Which of the following is used for UHF scatter?
#8. The ozone layer absorbs
#9. The part of the atmosphere closest to Earth is called?
#10. Transmission lines radiate at