Chapter 12: Electromagnetic Waves (545 KB) - D Cassidy Books

3637_CassidyTX_12 6/13/02 11:34 AM Page 584584 12. ELECTROMAGNETIC WAVESof looking at things has changed greatly. Attitudes toward action-at-a-distanceare a case in point. What are some other examples?17. Can intuition be educated; that is, can feelings about the fundamental aspectsof reality be changed? Use attitudes toward action-at-a-distance through theether as one example, and give others.Quantitative1. An electron oscillating on an antenna produces an electromagnetic wave thatvibrates at 10,000 Hz.(a) What are the wave’s frequency, its period, and its wavelength?(b) What type of wave is this?2. Obtain the frequency range of the FM dial on a radio. What is the correspondingrange of wavelengths of the FM waves received by the radio?3. How much time would elapse between the sending of a radar signal from theEarth to the Moon and the detection of its echo on Earth?