Diffraction: 3.3.2.2
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Questions and Answers

What happens to diffraction when the gap size is smaller than the wavelength?

  • Most waves are reflected (correct)
  • Diffraction is maximized
  • There is no diffraction
  • The pattern becomes less noticeable
  • In the diffraction pattern produced by monochromatic light through a single slit, what causes the bright fringes?

  • Reflection at the slit
  • Destructive interference
  • Waves meeting out of phase
  • Constructive interference (correct)
  • What happens to the intensity of the fringes as you move away from the central fringe?

  • It becomes unpredictable
  • It decreases (correct)
  • It increases
  • It remains constant
  • How does the width of the obstacle affect diffraction?

    <p>Decreases diffraction</p> Signup and view all the answers

    What type of pattern is formed when monochromatic light is diffracted through a single slit onto a screen?

    <p>Interference pattern of light and dark fringes</p> Signup and view all the answers

    When waves meet completely out of phase in a diffraction pattern, what type of interference occurs?

    <p>Destructive interference</p> Signup and view all the answers

    What occurs when the gap is smaller than the wavelength?

    <p>Most waves are reflected</p> Signup and view all the answers

    How does the intensity of the fringes change as you move away from the central fringe?

    <p>It decreases</p> Signup and view all the answers

    What is the main result of having an obstacle wider than the wavelength in wave diffraction?

    <p>Decreased diffraction</p> Signup and view all the answers

    In a diffraction pattern, what causes the dark fringes?

    <p>Destructive interference</p> Signup and view all the answers

    What would happen if a wave meets an obstacle with a size exactly equal to the wavelength?

    <p>Maximum diffraction</p> Signup and view all the answers

    When monochromatic light diffracts through a single slit forming an interference pattern, why is there a bright central fringe?

    <p>Caused by constructive interference</p> Signup and view all the answers

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