Electromagnetic Wave Propagation Quiz 1 ProProfs Quiz. Radio waves were mathematically predicted by ____________________. Sky Wave Amp Space Wave Communication – Quantum Study. This is the Multiple Choice Questions in Chapter 15: Radio-Wave Propagation from the book Electronic Communication Systems by Roy Blake. Polarization of the incident wave 3. 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In a single reflection from the ionosphere, the radio waves cover a distance not more than 4000 km. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Unguided media – ground propagation, sky propagation, and line-of-sight propagation MCQs. Řeka je příběh o mé rodině. 18. 2. B. MCQ quiz on Antenna and Wave Propagation multiple choice questions and answers on antenna and wave propagation MCQ questions quiz on antenna and wave propagation objectives questions with answer test pdf. 1. Frequency of the incident wave a. Radio waves are ____________________ electromagnetic waves. 15. MCQ in Radiation and Wave Propagation Part 1 | ECE Board Exam About Pinoybix Pinoybix.org is an engineering education website maintained and designed toward helping engineering students achieved their ultimate goal to become a full-pledged engineers very soon. 6. 1. C. 56.9 nW. Q1. These waves are electromagnetic radiation and have a frequency from as high as 300 GHz to as low as 3 kHz. 595 nW. “Ghosts” on a TV screen are an example of: a. send a message multiple times over a channel, b. send a message over multiple channels at the same time, c. extend the range of a radio communications system. 1) What is the wavelength of Super high frequency (SHF) especially used in Radar & satellite communication? Radio Wave Components Component Comments Direct wave Free-space/ LOS propagation Attenuated wave Through walls etc. What power must a point-source of radio waves transmit so that the power density at 3000 meters from the source is 1 µW/m2? Antenna and Wave Propagation … 16. 1 m – 10 m b. Some radio signals can travel or propagate around the globe, whereas other radio signals may only propagate over much shorter distances. Both the electric and magnetic fields of a radio wave are ____________________ to its propagation direction. Give it a try and share your score. If you are looking for a reviewer in Communications Engineering this will definitely help. The sizes of these antennas depend upon the bandwidth and frequency of the signal to be transmitted. The use of ____________________ chips makes cell phones a practical technology. 2. The process of ____________________ makes radio waves appear to “bend around a corner”. 41) According to Snell’s law in optics, if a ray travels from dense media to rarer media, what would be its direction w.r.t the normal? ITU-R P.453-6. As a cell-phone user passes from one cell to another: 27. 14. Q6: Which of the following is the phenomenon caused when Radio waves travel in two or more paths during propagation and produce slowly-changing phase differences between signals? These waves do not require any material medium for propagation Both electric and magnetic field vectors attain the maxima and minima at the same place and the same time Answer: (b) Both electric and magnetic field vectors are parallel to each other and perpendicular to the direction of propagation of the wave. 25. This is the Multiple Choice Questions in Chapter 15: Radio-Wave Propagation from the book Electronic Communication Systems by Roy Blake. The wavefront of a point source would have the shape of a ____________________. Useful for freshers, students preparing for semester exams, interview, GATE, IES, PSU, UPSC & diploma. The watts per square meter of a radio wave ____________________ as the wave-front moves through space. 27. Also provides professionals with materials for their lectures and practice exams. The electric field of a radio wave is ____________________ to its magnetic field. A mobile radio is being used at 1 GHz in an urban environment with lots of reflecting structures. Antenna and Wave Propagation Trivia Questions and Answers PDF. On Air. P.370 Pinoybix.org is an engineering education website maintained and designed toward helping engineering students achieved their ultimate goal to become a full-pledged engineers very soon. MCQs: Antenna & Wave Propagation Test Questions - Mcqs Clouds is a portal which provide MCQ Questions for all competitive examination such as GK mcq question, competitive english mcq question, arithmetic aptitude mcq question, Data Intpretation, C and Java programing, Reasoning aptitude questions and answers with easy explanations. a. Cell phones typically operate at a ____________________ power level. When the angle of incidence is _____ the critical angle, the light beam … An antenna has “gain” as compared to: a. the E and I fields of the Radiated Power, b. the Effective Isotropic Radiated Power, c. the Effective Internal Reflected Power, d. the Electric-field Intensity of the Radiated Power. Antenna Wave & Propagation - Important Questions with Answers 595 pW. Required fields are marked *. If the car is traveling 36 km/hour, what is the expected time between fades? Wave Propagation And … Reference atmosphere for refraction Note - Suppressed on 24/10/97 (RA-97) - This Recommendation has been replaced by Rec. ____________________ waves are vertically polarized radio waves that travel along the earth’s surface. 7. 13. The sky wave propagation is also known as ionosphere propagation, since the sky waves reach the receiver after reflection from the ionosphere. The radio waves can be sent from one place to another through ground wave propagation, sky wave propagation and space wave propagation. MCQ on Radio Wave Propagation. 12. MCQ on Radio Wave Propagation. Dec 19,2020 - Electromagnetic Wave Propagation - MCQ Test | 20 Questions MCQ Test has questions of Railways preparation. Home >> Category >> Electronic Engineering (MCQ) questions & answers >> Mobile Radio Propagation; 1) Direct RF pulse system helps in calculating. 300+ TOP MCQs on Radio Wave Propagation and Answers NEET Physics is the very imporatant paper in the Medical Entrance EXAM. Ground wave propagation c. Sky wave propagation d. All of the above. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. Help me go forward with the same spirit. Students can solve NCERT Class 12 Physics Electromagnetic Waves MCQs Pdf with Answers to know their preparation level. “Will you subscribe today via YOUTUBE?”. 26. RF propagation is a particularly important topic for an… 9. If the number of cell-phone users within a cell increases above some limit: 26. 5. The ____________________ zone is a region where sky waves cannot be received. Learn faster with spaced repetition. “Ghosts” on a TV screen are an example of ____________________ distortion. At 300 GHz, the wavelength is 1 mm and at 3 kHz it is 100 km. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. 4. Antenna & Wave Propagation objective questions (MCQs) and answers for competitive & university exams. Lightning or astronomical objects make all the waves that have naturally occurred. Line of sight (LOS) propagation 2. 1 cm – 10 cm c. 10 cm – 1 m d. 0.1 cm – 1 cm ANSWER: 1 cm – 10 cm 2) Which among the following is an application of high frequency? Mobile Radio Propagation - Electronic Engineering (MCQ) questions & answers ... (MCQ) questions & answers. a. The propagation speed of radio waves in free space is ____________________ m/sec. a. Radio waves were first demonstrated experimentally by: 3. ____________________ is the “bending” of radio waves as they travel across the boundary between two different dielectrics. Answer: (d) Maxwell. Free PDF Download of CBSE Physics Multiple Choice Questions for Class 12 with Answers Chapter 8 Electromagnetic Waves. Radio signals can travel over vast distances. MCQs on Radio Wave Propagation for NEET. Which of the following are electromagnetic: 6. 10. A 20-dB reduction in the strength of a radio wave due to reflection is called: 22. a. B. direct-wave . A. ground wave . Radio waves were first demonstrated by ____________________. Radio waves are the waves having the longest wavelength in the electromagnetic spectrum. _____ is the amount of voltage induced in wave by an electro magnetic wave. Q1: Mathematical prediction of radio waves was done by, Q2: The electric field and magnetic field of a radio wave are, Q3: The speed of radio wave in free space is, Q4: Radio waves would strongly reflect off, Answer:(b) A flat metallic surface of the right size, Q5: Radio waves sometimes bend around the corners due to. Q3. The mode of propagation of electromagnetic waves in the atmosphere and in free space may be divided in to the following three categories − 1. 14. Tags. Diffraction, at high frequencies, depends upon 1. A. The ____________________ of frequencies allows many cell-phone users to share a geographical area. Sea wave propagation b. An antenna is said to have ____________________ in a certain direction if it radiates more power in that direction than in other directions. Tutorial of solved problems for oral viva questions. Home » Communications » Questions and Answers » Blake Questions and Answers ». Subject: Antenna and Wave Propagation 4. 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