hw5ans - wilson(tw8656 H04 EM Radiation mccord(50960 This...

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wilson (tw8656) – H04: EM Radiation – mccord – (50960) 1 This print-out should have 16 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points What is the Frequency oF light with a wave- length oF 4.0 × 10 - 7 m? 1. 120 s - 1 2. 3 . 0 × 10 - 14 s - 1 3. 7 . 5 × 10 14 s - 1 correct 4. 1 . 3 × 10 - 15 s - 1 5. 3 . 0 × 10 14 s - 1 Explanation: 002 10.0 points What is the correct order oF increasing Fre- quency? 1. radio waves, inFrared radiation, ultravio- let radiation, visible light 2. ultraviolet radiation, visible light, in- Frared radiation, radio waves 3. radio waves, visible light, ultraviolet radi- ation, inFrared radiation 4. radio waves, inFrared radiation, visible light, ultraviolet radiation correct 5. inFrared radiation, radio waves, visible light, ultraviolet radiation Explanation: radio waves < inFrared radiation < visible light < ultraviolet radiation 003 (part 1 of 2) 10.0 points Light with a Frequency oF 6 . 83 × 10 14 Hz lies in the violet region oF the visible spectrum. What is the wavelength oF this Frequency oF light? Correct answer: 439 . 239 nm. Explanation: ν = 6 . 83 × 10 14 Hz c = 3 × 10 8 m / s c = λ ν λ = c ν = 3 × 10 8 m / s 6 . 83 × 10 14 s - 1 = 4 . 39239 × 10 - 7 m · 10 9 nm 1 m = 439 . 239 nm 004 (part 2 of 2) 10.0 points When an electron beam strikes a block oF copper, x-rays oF Frequency 2 . 4 × 10 19 Hz are emitted. What is the wavelength oF these x-rays? Correct answer: 12
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hw5ans - wilson(tw8656 H04 EM Radiation mccord(50960 This...

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