Radiation Safety Practice Exam

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Study for the Radiation Safety Exam. Test your knowledge with multiple choice questions, each equipped with hints and explanations. Prepare effectively and confidently!

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Which of the following is equal to 1,000 electron volts?

  1. MeV

  2. keV

  3. GeV

  4. PeV

The correct answer is: keV

1,000 electron volts is equal to 1 kiloelectron volt (keV). The prefix "kilo-" denotes a factor of one thousand, so when you see "keV," it refers to thousands of electron volts. In terms of units, 1 keV corresponds to 1,000 eV, thus making it the correct choice. Understanding the unit conversions within the context of particle physics and radiation safety is important, as these measurements often indicate energy levels of particles, photons, and other radiation. MeV (megaelectron volts), GeV (gigaelectron volts), and PeV (petaelectron volts) represent much larger scales of electron volts, with each prefix indicating a multiplication factor of a thousand compared to the previous one. Therefore, while those units are related to electron volts, they do not correspond directly to 1,000 eV specifically.

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