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JEE Main Previous Year Questions (2021-2026) Communication Systems - Physics
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Page 1 MCQ (Single Correct Answer) Q.1. The height of transmitting antenna is 1 8 0 m and the height of the receiving antenna is 2 4 5 m. The maximum distance between them for satisfactory communication in line of sight will be : JEE Main 2023 (Online) 15th April Morning Shift the antennas should have a minimum size equal to: Q.2. To radiate EM signal of wavelength ? with high efficiency, Page 2 MCQ (Single Correct Answer) Q.1. The height of transmitting antenna is 1 8 0 m and the height of the receiving antenna is 2 4 5 m. The maximum distance between them for satisfactory communication in line of sight will be : JEE Main 2023 (Online) 15th April Morning Shift the antennas should have a minimum size equal to: Q.2. To radiate EM signal of wavelength ? with high efficiency, JEE Main 2023 (Online) 13th April Evening Shift Q.3. (D) Explanation Q.4. In satellite communication, the uplink frequency band used is : Page 3 MCQ (Single Correct Answer) Q.1. The height of transmitting antenna is 1 8 0 m and the height of the receiving antenna is 2 4 5 m. The maximum distance between them for satisfactory communication in line of sight will be : JEE Main 2023 (Online) 15th April Morning Shift the antennas should have a minimum size equal to: Q.2. To radiate EM signal of wavelength ? with high efficiency, JEE Main 2023 (Online) 13th April Evening Shift Q.3. (D) Explanation Q.4. In satellite communication, the uplink frequency band used is : JEE Main 2023 (Online) 11th April Evening Shift Q.5. A transmitting antenna is kept on the surface of the earth. The minimum height of receiving antenna required to receive the signal in line of sight at 4 km distance from it is x×10-2 m. The value of x is __________. (Let, radius of earth R=6400 km ) JEE Main 2023 (Online) 11th April Morning Shift Page 4 MCQ (Single Correct Answer) Q.1. The height of transmitting antenna is 1 8 0 m and the height of the receiving antenna is 2 4 5 m. The maximum distance between them for satisfactory communication in line of sight will be : JEE Main 2023 (Online) 15th April Morning Shift the antennas should have a minimum size equal to: Q.2. To radiate EM signal of wavelength ? with high efficiency, JEE Main 2023 (Online) 13th April Evening Shift Q.3. (D) Explanation Q.4. In satellite communication, the uplink frequency band used is : JEE Main 2023 (Online) 11th April Evening Shift Q.5. A transmitting antenna is kept on the surface of the earth. The minimum height of receiving antenna required to receive the signal in line of sight at 4 km distance from it is x×10-2 m. The value of x is __________. (Let, radius of earth R=6400 km ) JEE Main 2023 (Online) 11th April Morning Shift Q.6. A message signal of frequency 3 k Hz is used to modulate a carrier signal of frequency 1 . 5 MH z. The bandwidth of the amplitude modulated wave is JEE Main 2023 (Online) 10th magni April Evening Shift Q.7. A carrier wave of amplitude 15 V is modulated by a sinusoidal base band signal of tude 3 V. The ratio of maximum amplitude to minimum amplitude in an amplitude modulated wave is Page 5 MCQ (Single Correct Answer) Q.1. The height of transmitting antenna is 1 8 0 m and the height of the receiving antenna is 2 4 5 m. The maximum distance between them for satisfactory communication in line of sight will be : JEE Main 2023 (Online) 15th April Morning Shift the antennas should have a minimum size equal to: Q.2. To radiate EM signal of wavelength ? with high efficiency, JEE Main 2023 (Online) 13th April Evening Shift Q.3. (D) Explanation Q.4. In satellite communication, the uplink frequency band used is : JEE Main 2023 (Online) 11th April Evening Shift Q.5. A transmitting antenna is kept on the surface of the earth. The minimum height of receiving antenna required to receive the signal in line of sight at 4 km distance from it is x×10-2 m. The value of x is __________. (Let, radius of earth R=6400 km ) JEE Main 2023 (Online) 11th April Morning Shift Q.6. A message signal of frequency 3 k Hz is used to modulate a carrier signal of frequency 1 . 5 MH z. The bandwidth of the amplitude modulated wave is JEE Main 2023 (Online) 10th magni April Evening Shift Q.7. A carrier wave of amplitude 15 V is modulated by a sinusoidal base band signal of tude 3 V. The ratio of maximum amplitude to minimum amplitude in an amplitude modulated wave is JEE Main 2023 (Online) 10th April Morning Shift Q.8. The power radiated from a linear antenna of length l is proportional to (Given, ?= Wavelength of wave): JEE Main 2023 (Online) 8th April Evening Shift Q.9. A TV transmitting antenna is 98 m high and the receiving antenna is at the ground level. If the radius of the earth is 6 4 0 0 km, the surface area covered by the transmitting antenna is approximately:Read More
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May 11, 2026 Last updated
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Document Description: JEE Main Previous Year Questions (2021-2026): Communication Systems for JEE 2026 is part of Physics for JEE Main & Advanced preparation. The notes and questions for JEE Main Previous Year Questions (2021-2026): Communication Systems have been prepared according to the JEE exam syllabus. Information about JEE Main Previous Year Questions (2021-2026): Communication Systems covers topics like and JEE Main Previous Year Questions (2021-2026): Communication Systems Example, for JEE 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for JEE Main Previous Year Questions (2021-2026): Communication Systems.
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