Interferometry and Metrology Quiz
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Questions and Answers

What is the difference between unpolarised light and polarised light?

  • Unpolarised light has a single orientation of electric field vibrations, while polarised light has multiple orientations.
  • Unpolarised light has monochromatic properties, while polarised light has polychromatic properties.
  • Unpolarised light has random orientation of electric field vibrations, while polarised light has vibrations in a specific direction. (correct)
  • Unpolarised light has vibrations in a specific direction, while polarised light has random orientation of electric field vibrations.
  • What is the main characteristic of laser light?

  • Low intensity and wide spectrum
  • Low coherence and narrow spectrum
  • High coherence and wide spectrum
  • High intensity and narrow spectrum (correct)
  • How is plane-polarised light produced?

  • By passing unpolarised light through a polariser (correct)
  • By passing polarised light through a prism
  • By using a diffraction grating
  • By rotating the light source at a specific angle
  • What is the process of population inversion in lasers?

    <p>It involves more atoms in the higher energy state than in the lower energy state</p> Signup and view all the answers

    What is one of the main components of a laser?

    <p>Optical cavity</p> Signup and view all the answers

    What is optical activity?

    <p>The ability of a material to rotate the plane of polarisation of light passing through it</p> Signup and view all the answers

    What is the function of a half-shade polarimeter?

    <p>To determine the optical rotation caused by chiral substances</p> Signup and view all the answers

    In holography, what is the process used for recording and reconstructing images?

    <p>Interference pattern</p> Signup and view all the answers

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