Match List - I with List - II.List - I (Communication System) List - II (Bandwidth) A. AM broadcast I. 7 MHz B. Telephone II. 200 KHz C. Wideband FM III. 4 KHz D. TV IV. 10 KHz
Matching Communication System Bandwidths
- AM Broadcast: Standard AM radio channels are typically allocated a bandwidth of 10 KHz to prevent interference. This corresponds to option IV.
- Telephone: A single voice channel in traditional telephony uses a bandwidth of approximately 4 KHz, covering the essential range of human speech frequencies (around 300 Hz to 3.4 kHz). This corresponds to option III.
- Wideband FM: Used for applications like FM radio broadcasting, this system requires a larger bandwidth than AM or narrowband FM. It typically uses around 200 KHz per channel to accommodate the wider frequency deviation. This corresponds to option II.
- TV: Analog television broadcasting requires a significant amount of bandwidth for video and audio signals. A standard TV channel bandwidth is approximately 7 MHz. This corresponds to option I.
Final Bandwidth Matching
Based on the typical bandwidth requirements for each communication system:
- A. AM broadcast matches with IV (10 KHz)
- B. Telephone matches with III (4 KHz)
- C. Wideband FM matches with II (200 KHz)
- D. TV matches with I (7 MHz)
Therefore, the correct matching is A-IV, B-III, C-II, D-I.
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