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LRA 211 FINAL REVIEW STUDY GUIDE QUESTIONS AND ANSWERS

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LRA 211 FINAL REVIEW STUDY GUIDE QUESTIONS AND ANSWERS

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LRA 211
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LRA 211
Course
LRA 211

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Uploaded on
January 14, 2026
Number of pages
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Written in
2025/2026
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LRA 211 FINAL REVIEW STUDY GUIDE QUESTIONS AND ANSWERS




The earliest atomic theory based on an arrangement similar to the solar system is attributed to -
(answer)Rutherford.



The three fundamental particles of the atom are the - (answer)neutron, electron, and proton.



The atomic nucleus contains - (answer)protons and neutrons.



The component of the nucleus that has a positive charge and mass is the - (answer)proton.



The electron shell closest to the nucleus is lettered - (answer)"K".



Which of the following is not part of the electromagnetic spectrum? - (answer)Sound



Which of the following electromagnetic radiations have the lowest energy level? - (answer)Radio waves



As the wave's frequency increases, the wavelength - (answer)decreases.



Frequency is typically measured in - (answer)hertz.



The process of removing an electron from an atom is - (answer)ionization.



X-rays are produced - (answer)using fast-moving electrons.



Which of the following helps to keep the x-ray tube cool on the inside of the protective housing? -
(answer)Cooling fans and an oil bath



In terms of the x-ray tube, envelope is another name for the - (answer)glass or metal enclosure.

, LRA 211 FINAL REVIEW STUDY GUIDE QUESTIONS AND ANSWERS




The positive end of the x-ray tube is the - (answer)anode.



The negative end of the x-ray tube is the - (answer)cathode.



The area of the envelope where x-rays should exit the tube is the - (answer)target window.



The anode serves as a(n) - (answer)target for the electron interaction to produce x-ray, electrical
conductor, heat conductor.



The two types of anode designs are stationary and - (answer)rotating.



Tungsten is used to coat the anode disc because it - (answer)has a high atomic number.



With a rotating anode, the focal spot becomes a focal - (answer)track.



X-rays are produced by - (answer)characteristic and bremsstrahlung interactions.



When filament electrons enter the anode target, they interact with - (answer)outer shell electrons of
tungsten atoms.



When a filament electron knocks out a K shell electron from the tungsten atom, it leads to - (answer)a
characteristic x-ray photon.



The energy of the characteristic x-ray photon depends on - (answer)the binding energy of the inner-shell
electron

the energy level of the filament electron

the shell of the electron that is dropping into the vacancy.
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