Medical Microbiology BIOL 2161 Chapter 2: Properties of Light

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Questions and Answers

What is the property of light that refers to the distance between one peak of a wave and the next peak?

  • Frequency
  • Interference
  • Amplitude
  • Wavelength (correct)

When a wave bounces off a material, what interaction of light is occurring?

  • Absorption
  • Refraction
  • Transmission
  • Reflection (correct)

Which property of light refers to the rate of vibration of the wave or the number of wavelengths within a specified time period?

  • Wavelength
  • Transmission
  • Frequency (correct)
  • Amplitude

When a material captures the energy of a light wave, what interaction of light is occurring?

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

What process is called when a wave travels through a material, like light through glass?

<p>Transmittance (B)</p> Signup and view all the answers

In the case of glow-in-the-dark plastics, what happens when the energy from light is absorbed and then later re-emitted as another form of phosphorescence?

<p>Absorption (B)</p> Signup and view all the answers

What is the effect of dropping two pebbles into a puddle?

<p>Creation of complex interference patterns (D)</p> Signup and view all the answers

What is the term for the interaction of light waves with small objects or openings by bending or scattering?

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

How does the size of an object affect diffraction when light waves interact with it?

<p>The smaller the object, the larger the diffraction (A)</p> Signup and view all the answers

What occurs when light waves change direction as they enter a new medium?

<p>Refraction (B)</p> Signup and view all the answers

What is the refractive index of a material a measure of?

<p>The extent to which it slows transmission speed relative to empty space (C)</p> Signup and view all the answers

Which material has a higher refractive index, water or air?

<p>Water (D)</p> Signup and view all the answers

How does light behave when crossing a boundary into a material with a higher refractive index?

<p>It bends toward the normal to the boundary (B)</p> Signup and view all the answers

What is the behavior of a convex lens when light strikes it?

<p>It collects and refracts all the light that strikes it (B)</p> Signup and view all the answers

What is the focal point of a lens?

<p>The point where all light meets after being refracted (C)</p> Signup and view all the answers

Which type of waves have higher energy and more oscillations per unit time?

<p>Waves with higher frequencies (D)</p> Signup and view all the answers

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