32) 40 GHz-300GHz band is used in
a) Satellite b) Radar
c) Pyrometer
d) TV set
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Answer:
a) Satellite
Explanation:
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40 GHz-300GHz band is used in (a) Satellite
Explanation:
1.Satellites send television signals directly to homes, but they also are the backbone of cable and network TV. These satellites send signals from a central station that generates programming to smaller stations that send the signals locally via cables or the airwaves
2.The major frequency bands used for satellite communication in India are S-band, C-band, Upper Extended C band, Ku band and Ka band. The INSAT/GSAT satellites carry transponders in these bands.
3.Satellite communications use the very high-frequency range to transmit and receive signals.
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