Introduction to Light: Wave Theory and Particle Nature
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Questions and Answers

What is the relationship between the energy (E) of light and the number of waves that pass a point in 1 second (frequency, ν)?

  • E = hC
  • E = h/ν
  • E = hν (correct)
  • E = hλ

    • What is the wavelength of the green light from a traffic signal if its frequency is 5.76 x 10^14 Hz?

  • 611 nm (correct)
  • 589 nm
  • 522 nm
  • 590 nm

    • What does the lowest energy level in a substance (molecule or atom) represent?

  • Vibrational energy level
  • Rotational level
  • Excited state (Ex)
  • Ground state (G.S) (correct)

    • What type of light absorbed by a substance causes electronic transition followed by emission?

    <p>High energetic light (e.g., UV and visible)</p> Signup and view all the answers

    What characteristic defines the distance of one complete cycle (one wave) for light?

    <p>Wavelength (λ)</p> Signup and view all the answers

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