3.8 Interference

    Cards (53)

    • What is wave interference?
      Superposition of waves
    • What happens to the amplitude of waves during destructive interference?
      Decreases
    • Order the phase differences for constructive and destructive interference:
      1️⃣ Constructive: 0, 2π, 4π, etc.
      2️⃣ Destructive: π, 3π, 5π, etc.
    • In constructive interference, the crests of waves align with the crests
    • What is the resulting amplitude of waves undergoing constructive interference?
      Increased
    • Wave interference can only be constructive.
      False
    • The superposition principle states that the resulting displacement is the algebraic sum
    • Destructive interference results in a decreased wave amplitude.
      True
    • What happens to the wave amplitude during destructive interference?
      Decreases
    • Constructive interference occurs when the phase difference is π, 3π, or 5π.
      False
    • Match the type of interference with its phase difference and resulting amplitude:
      Constructive ↔️ 0, 2π, 4π; Increased
      Destructive ↔️ π, 3π, 5π; Decreased
    • What causes the interference pattern in Young's double slit experiment?
      Superposition of waves
    • Young's double slit experiment demonstrates the wave nature of light
    • For constructive interference, the path difference must be an integer multiple of the wavelength.
      True
    • What does the variable \(s\) represent in the fringe spacing equation?
      Distance between slits
    • Constructive interference increases the amplitude of the resulting wave.

      True
    • What is the phase difference for destructive interference?
      π,3π,5π\pi, 3\pi, 5\pi
    • Wave Interference is the phenomenon that occurs when two or more waves superpose to create a new wave pattern
    • What happens to the amplitude of waves during destructive interference?
      It decreases
    • Match the type of interference with its phase difference:
      Constructive ↔️ 0, 2π, 4π, etc.
      Destructive ↔️ π, 3π, 5π, etc.
    • Constructive interference results in an increased amplitude when waves meet in phase.
      True
    • The superposition principle leads to two primary types of interference
    • What is the phase relationship between waves during destructive interference?
      Out of phase
    • Superposition in Young's Double Slit Experiment creates an interference pattern.
      True
    • Steps in Young's Double Slit Experiment
      1️⃣ Light passes through two narrow slits
      2️⃣ Superposition of light waves occurs
      3️⃣ Constructive interference creates bright fringes
      4️⃣ Destructive interference creates dark fringes
    • Fringe spacing increases if the wavelength of light increases.

      True
    • Match the example of interference with its cause:
      Thin Films ↔️ Light reflections from different layers
      Soap Bubbles ↔️ Interference of light waves
    • Constructive interference occurs when waves meet in phase
    • Waves with a phase difference of 0, 2π, 4π, etc., undergo constructive interference.
      True
    • What does the superposition principle state?
      Algebraic sum of displacements
    • Destructive interference occurs when crests align with troughs.
      True
    • Waves meeting out of phase result in destructive interference
    • What is the role of phase relationship in wave interference?
      Determines type of interference
    • What is the effect on wave amplitude during constructive interference according to the superposition principle?
      Increased
    • Constructive interference occurs when crests align with crests
    • What is the resulting amplitude when waves undergo destructive interference?
      Decreased
    • Constructive interference occurs when waves meet in phase
    • Steps in Young's double slit experiment
      1️⃣ Light passes through two narrow slits
      2️⃣ An interference pattern is created on a screen
      3️⃣ Waves meet in phase (constructive interference) to form bright fringes
      4️⃣ Waves meet out of phase (destructive interference) to form dark fringes
    • In Young's double slit experiment, destructive interference occurs when the phase difference is an even multiple of π.
      False
    • What is the equation for fringe spacing in an interference pattern?
      w=w =λDs \frac{\lambda D}{s}
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