AP Physics 2: Algebra-Based Flashcards: Double-Slit Interference and Diffraction Gratings
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Review key ideas with interactive flashcards. This set includes 11 cards to help you master important concepts.
What is the general term for the pattern resulting from a wave passing through multiple openings?
The resulting pattern is known as a diffraction pattern, which is caused by the combination of diffraction and interference.
Card 1 of 11
All Flashcards (11)
What is the general term for the pattern resulting from a wave passing through multiple openings?
The resulting pattern is known as a diffraction pattern, which is caused by the combination of diffraction and interference.
If you wanted to produce an interference pattern by superimposing numerous diffraction patterns, what device would you use?
You would use a diffraction grating, which is specifically designed as a collection of many evenly spaced slits for this purpose.
What fundamental property of light is demonstrated by interference patterns from a double slit?
Interference patterns produced by light interacting with a double slit indicate that light has wave properties.
How is the interference pattern from a diffraction grating formed?
The pattern is formed by the combination of numerous diffraction patterns from each slit being superimposed on each other.
What is a diffraction grating?
A diffraction grating is a collection of evenly spaced parallel slits or openings that produce an interference pattern.
Describe the behavior of a wave as it passes through multiple openings.
The wave undergoes diffraction at each opening, and the resulting waves interfere with each other to create a diffraction pattern.
What two wave phenomena combine to create the pattern from a double-slit experiment?
The pattern is caused by a combination of wave diffraction as light passes through the slits and wave interference between the light from the two slits.
When considering only the effects of wave interference, what pattern does a double slit create?
When only considering wave interference, a double slit creates a pattern of uniformly spaced maxima.
In a double-slit experiment, what do the variables λ and d represent?
The variable λ represents the wavelength of the monochromatic light, and d represents the distance between the two slits.
What causes the specific pattern seen when monochromatic light is incident on two slits separated by a distance d?
The pattern is caused by the combination of wave diffraction and wave interference of the monochromatic light.
An experimenter observes an interference pattern after shining a beam on a double slit. What does this observation imply about the beam?
This observation implies that the beam is exhibiting wave properties, as the interference pattern is a hallmark of wave behavior.