All electromagnetic waves travel through a vacuum at a. the same speed. Propagation in media depends on re-radiation by electron-oscillators, which takes a finite time to occur. 1 m – 10 m b. 1 cm – 10 cm c. 10 cm – 1 m d. 0.1 cm – 2. c. speeds that are inversely proportional to their frequency. 2. b) Hibiscus. Multiple Choice Questions on Vegetative Propagation in Plants. What do you know about it and the rest of these transfer methods? Preview this quiz on Quizizz. 3. b) Layering. Electromagnetic waves are a. longitudinal. Which of the following characteristics of diagnostic ultrasound applies also to X-radiation? Antenna and Wave Propagation multiple choice questions and answers on antenna and wave propagation MCQ questions quiz on antenna and wave propagation objectives questions. In the scientific topic of heat transfer, convection, conduction, and radiation are of vital importance. d. None of the above. 4. d) IAA. Chapter 22 Sample Multiple Choice Problems . We can say that: a. A medium is a different reference frame to vacuum, so the difference in the observed speed of light is a consequence of relativity. Warm air rises and the cool air sinks demonstrates this type of heat transfer. Electron oscillators in the medium introduce a phase change upon re-radiation. Chapter 15 Multiple choice questions and answers. Convective heat, for example, is the transfer of heat by the movement of fluids. a. Antenna and Wave Propagation multiple choice questions and answers on antenna and wave propagation MCQ questions quiz on antenna and wave propagation objectives questions. Missed a question here and there? c 1540 ms −1. a 1450 ms −1. 1. X-ray radiation has frequencies from 3.0 x 1016 to 3.0 x 1019 Hz, whereas the frequency region for radio wave radiation is 3.0 x 105 to 3.0 x 107 Hz. 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