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### Lecture Question Sheet 3

Course: SCIENCE V55.0202, Fall 2007
School: NYU
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Word Count: 185

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&amp; Cosmos the Earth / Fall 2007 / Lecture Question Sheet #3 1. What is the speed of light? 2. Define period, frequency and wavelength in words. 2. Name three types of wave other than light. 2. What is the mathematical relationship between period and frequency? 2. What is the mathematical relationship among frequency, wavelength, and the speed of a light wave? 3. Light is a wave of what? 4. How do...

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& Cosmos the Earth / Fall 2007 / Lecture Question Sheet #3 1. What is the speed of light? 2. Define period, frequency and wavelength in words. 2. Name three types of wave other than light. 2. What is the mathematical relationship between period and frequency? 2. What is the mathematical relationship among frequency, wavelength, and the speed of a light wave? 3. Light is a wave of what? 4. How do charged particles interact? 2 5. Put the following in order of wavelength, from shortest to longest: x-ray, radio, gamma-ray, infrared, optical. 6. Put in order from shortest wavelength to longest: red, yellow, blue, green. 7. Describe what and constructive destructive interference are. 8. If two emitters are emitting light "in phase" -- meaning that their periods are synchronous -- and you are an observer, what does the difference in your distance to the two objects have to be to see constructive inference? 9. What is the Doppler shift? 10. If a laser that normally emitted at 600 nm is observed to be emitting at 606 nm, how fast (in km/s) would we infer it is moving? Away from us or towards us? Representative review questions, Chapter 3: 18, 1012 Representative self-test questions, Chapter 3: 1, 2, 3, 11, 12 3 Representative problems, Chapter 3: 1, 2, 3, 4, 5
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