Interference and Path Difference in Slit Experiments
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Questions and Answers

According to Huygens' principle, what are the wavelets formed by drawing a half-circle around each point on a wave?

  • Half circles (correct)
  • Straight lines
  • Quarter circles
  • Full circles

    • What happens when waves interfere constructively?

  • The waves combine into one wave with a larger amplitude (correct)
  • The waves disappear completely
  • The waves decrease in amplitude
  • The waves flatten out

    • What is the term used to describe the pattern that occurs when light waves diffract and interfere with each other?

  • Shadow pattern
  • Interference pattern (correct)
  • Wavelet pattern
  • Diffraction pattern

    • According to Huygens' Principle, how can you predict a wave's position in the future?

    <p>By analyzing its current position (A)</p> Signup and view all the answers

    What did 19th-century physicists believe about light?

    <p>It is a particle (C)</p> Signup and view all the answers

    What did Christian Huygens contribute to the understanding of light?

    <p>He developed Huygens' Principle (B)</p> Signup and view all the answers

    Which type of interference occurs when waves are shifted by exactly half a wavelength?

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

    What is the equation for calculating the path difference in a single slit experiment?

    <p>Path difference = distance between the center of each slit * sine(angle) (C)</p> Signup and view all the answers

    What is the relationship between intensity and amplitude for light waves?

    <p>Intensity is directly proportional to the square of the amplitude (C)</p> Signup and view all the answers

    According to the text, what happens to the rays passing through the middle third and bottom third of the slit?

    <p>They cancel each other out (B)</p> Signup and view all the answers

    What causes the bright line in the shadow of the coin?

    <p>Both diffraction and interference (C)</p> Signup and view all the answers

    What creates the little ripples spreading outward from the circular shadow?

    <p>Both diffraction and interference (C)</p> Signup and view all the answers

    What happens when diffracted waves run into each other?

    <p>They combine to form one wave with a higher amplitude (D)</p> Signup and view all the answers

    What do the crests and troughs of different light waves do when they combine?

    <p>They form one wave with a higher amplitude (B)</p> Signup and view all the answers

    What did the text discuss in addition to the double-slit experiment?

    <p>The diffraction pattern from a single slit (D)</p> Signup and view all the answers

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