Radiation and the Atom
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Questions and Answers

Which type of radiation has no mass?

  • Radio waves (correct)
  • Gamma rays
  • Visible light
  • X-rays
  • What is the maximum speed at which electromagnetic radiation can travel in a vacuum?

  • 3.0 x 10^6 m/s
  • 3.0 x 10^8 m/s (correct)
  • 3.0 x 10^9 m/s
  • 3.0 x 10^7 m/s
  • What are the wave characteristics of electromagnetic radiation (EMR)?

  • Period, frequency (f), amplitude
  • Wavelength (λ), frequency (f), and the energy per photon (E) (correct)
  • Frequency (f), energy per photon (E), amplitude
  • Amplitude, wavelength (λ), period
  • What is the wavelength of x-rays and gamma rays in nanometers (nm)?

    <p>1 nm = 10^9 m</p> Signup and view all the answers

    How is frequency expressed for electromagnetic radiation (EMR)?

    <p>Hertz (Hz)</p> Signup and view all the answers

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