Basic Principles of Instrumentation in Analytical Methods
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Questions and Answers

What carries the energy in electromagnetic radiation?

  • Photons (correct)
  • Planck's constant
  • Frequency
  • Wavelength

How can light waves be characterized?

  • By frequency, speed, and amplitude
  • By wavelength, frequency, and wavenumber (correct)
  • By energy, wavelength, and speed
  • By amplitude, frequency, and speed

What is the number of waves per cm known as in spectroscopy?

  • Electromagnetic radiation
  • Planck's constant
  • Frequency
  • Wavenumber (correct)

What is the equation for the energy carried by each photon?

<p>E = hÏ… (A)</p> Signup and view all the answers

What is the unit of frequency in spectroscopy?

<p>Cycles/second (A)</p> Signup and view all the answers

Electromagnetic radiation consists of perpendicular and oscillating electric and magnetic fields.

<p>True (A)</p> Signup and view all the answers

The unit of frequency in spectroscopy can be cycles/second, s^-1, or Hertz (Hz).

<p>True (A)</p> Signup and view all the answers

Wavelength can be characterized by the distance units from one wave peak to the next, such as m, cm, μm, nm, or Å.

<p>True (A)</p> Signup and view all the answers

The number of waves per cm is known as wavenumber in spectroscopy.

<p>True (A)</p> Signup and view all the answers

Each photon in electromagnetic radiation carries the energy denoted by E = hν, where h is the Planck's constant.

<p>True (A)</p> Signup and view all the answers

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