Q. Arrange the following communication frequency bands in the increasing order of frequencies 1. AM broadcast 2. Cellular mobile radio 3. F.M. broadcast 4. Television UHF 5. Satellite communication
A) 1 3 4 2 5
B) 1 2 3 4 5
C) 5 2 4 3 1
D) 1 3 2 4 5
Explanation
(a) [table] Some important wireless communication frequency bands ; Name of Service | Frequency bands | Remarks ; Standard AM broadcast | 540 – 1600 kHz | ; FM broadcast | 88 – 108MHz | ; Television | 54 – 72MHz | VHF (very high frequencies) ; | 76 – 88MHz | (VHF) TV ; | 174 – 216MHz | UHF (ultra high frequencies) ; | 420 – 890MHz | (UHF) TV ; Cellular Mobile Radio | 896 – 901MHz | Mobile to base station ; | 840 – 935MHz | Base station to mobile ; Satellite Communi- cation | 5.925 – 6.425 GHz | Uplink ; | 3.7 – 4.2GHz | Downlink [/table]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.