- Determining Wavelength from Double–Slit Interference
- Conceptual Interference and Diffraction Questions
- Double–Slit Interference Fringe Positions
- Interference–Diffraction Pattern Fringes
- Three–Slit Interference
- Interference–Diffraction Parameter Determination
- Graphical Interference Question
- Two–Dimensional Waves
Young's Double Slit Experiment
Shows the setup of the double slit experiment and uses the geometry to determine the interference pattern from the phase difference of the waves.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Read chapter 14, pages 4–8 of online textbook
Diffraction
Introduction to Huygens's Principle, where every point on a wavefront acts as a source of spherical waves, and shows how this makes diffraction patterns possible; defines Fraunhofer diffraction.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Read chapter 14, pages 13–4 of online textbook
Superposition and Interference of Waves
Introduces constructive and destructive interference that arise from superposing coherent, monochromatic waves with a phase difference.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Read chapter 14, pages 2–4 of online textbook
Single Slit Diffraction
Calculates the interference pattern of a single finite slit due to Fraunhofer diffraction.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Read chapter 14, pages 14–6 of online textbook
Diffraction Grating
Shows qualitatively the patterns that arise from many–slit diffraction gratings, and the pattern dependence on the number of slits.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Read chapter 14, pages 20–2 of online textbook
Analyzing Interference Fringes
When an unknown slit pattern is illuminated with red laser light, it produces the illustrated interference fringes; what are the width and/or separation of the slits? Solution is included after problem.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 43–5
Double–Slit Interference Maxima
How many interference maxima lie within a given angular range in a two–slit interference setup? Solution is included after problem.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 26–7
Double–Slit Phase Difference
Find various relationships between phase difference, path length difference, and screen position for a two–slit interference setup. Solution is included after problem.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 27–8
Constructive Interference Condition
Coherent light is incident from an angle onto a plane containing two slits; find the relationship between the incidence angle, d, λ, and the screen position angle for a point that is an interference maximum. Solution is included after problem.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 28–9
Determining Wavelength from Double–Slit Interference
Determine the wavelength of light in a two–slit interference setup based on the setup geometry and the distance between the central maximum and the second–order bright fringe. Solution is included after problem.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 30
Conceptual Interference and Diffraction Questions
Conceptual questions about the conditions for interference and how two–slit and finite–slit interference patterns depend on setup parameters.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 33
Double–Slit Interference Fringe Positions
For a two–slit interference setup with given parameters, find the spacing between adjacent fringes and the position of the third order bright fringe.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 33
Interference–Diffraction Pattern Fringes
How many bright fringes are in the central diffraction maximum of the interference pattern from two finite slits?
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 33
Three–Slit Interference
Confirm the condition for the positions of interference maxima in a three–slit interference pattern, and find the spacing between adjacent maxima.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 34
Interference–Diffraction Parameter Determination
In a two finite slit diffraction pattern, characterize the relationship between slit width and separation based on the number of bring fringes in the central diffraction maximum.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 35
Graphical Interference Question
Distinguish constructive and destructive interference of illustrated waves.
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8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen–Ben Liao
Course Material Related to This Topic:
- Complete practice problems on page 1
Two–Dimensional Waves
Applet showing the propagation of waves in two dimensions to illustrate the properties of interference, diffraction, and reflection.
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8.02T Physics (Electricity and Magnetism) Labs, Spring 2005
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Michael Feld, Prof. Eric Hudson, Prof. John Joannopoulos, Prof. Bruce Knuteson, Dr. George Stephans
Course Material Related to This Topic:
- Interact with a Java Simulation