ASSIGNMENT   7 Textbook Assignment: “Infrared,”   chapter 6, pages 6-1 through 6-28. 7-1. 7-2. 7-3. 7-4. 7-5. 7-6. Which of the following types of remote sensing is natural light photography? 1. Active only 2. Passive only 3. Active and passive 4. Interactive What are the differences between IR waves and light, RF, and other electromagnetic waves? 1. Reflection and frequency 2. Refraction and absorption 3. Wavelengths and speed 4. Frequency and wavelengths What is the IR frequency range? 1. 300 MHz to 400 GHz 2. 400 MHz to 300 GHz 3. 300 GHz to 400 THz 4. 400 GHz to 300 THz The IR region lies between what wavelengths of the electromagnetic spectrum? 1. 1.00 and 7,200 nanometers 2. 1.00 and 7,200 micrometers 3. 0.72 and 1,000 nanometers 4. 0.72 and 1,000 micrometers Thermal imaging is referenced in terms of 1. temperature 2. reflectivity 3. visible light 4. color The types of IR imaging systems generally used are fast-framing, mechanical-scanning devices know as 1. BLIR 2. FLIR 3. SLIR 4. WLIR IN ANSWERING QUESTION 7-7, REFER TO FIGURE 6-2 IN THE TEXTBOOK. 7-7. What effect does the atmosphere have on the target signal? 1. Attenuates and blurs the signal 2. Enhances and sharpens the signal 3. Attenuates and sharpens the signal 4. Enhances and blurs the signal IN ANSWERING QUESTION 7-8, REFER TO TABLE 6-1 IN THE TEXTBOOK. 7-8. IR radiation is broken into how many total regions? 1. One 2. Two 3. Three 4. Four IN ANSWERING QUESTION 7-9, REFER TO FIGURE 6-3 IN THE TEXTBOOK. 7-9. The best IR windows in the transmission spectrum of the atmosphere are between which of the following wavelengths? 1. 2 µm and 5 µm, 8 µm and 13 µm 2. 3 µm and 5 µm, 8 µm and 14 µm 3. 3 µm and 6 µm, 8 µm and 15 µm 4. 2 µm and 7 µm, 9 µm and 15 µm 7-10. All rotter emits IR radiation above what temperature? 1. -273°C 2. -273°F 3.         0°C 4.    0°F 45