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Physics U4 & HW Quiz

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1. A 137Cs source used from instrument calibration has an intensity of 100mR/hr. at 20 cm. What would the intensity be 40 cm from the source?




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2. Formula for the speed of light (C):




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3. Diagnostic x-rays are




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4. According to the Particle Model: Quantum Theory, x-rays are directly proportional to what?




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5. If the distance from a point source is tripled the intensity will be




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6. For any electromagnetic radiation




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7. How many alternations in 1 second?




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8. The model used to describe an x-ray photon




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9. Define quantum:




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10. Term for light deviated from its line of travel:




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11. Radiolucent; Dark




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12. Two distances and one intensity




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13. Vaporization




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14. Collision




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15. Reflection




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16. 65 keV




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17. the wavelength decreases to 1/10




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18. It sometimes behaves like a wave




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19. Lambda min= Minimum wavelength=strongest photon in the beam of radiation




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20. increased by a factor of 4





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