In a thin film interference, what type of interference occurs when light reflect

Practice Questions

Q1
In a thin film interference, what type of interference occurs when light reflects off a medium with a higher refractive index?
  1. Constructive
  2. Destructive
  3. No interference
  4. Total internal reflection

Questions & Step-by-Step Solutions

In a thin film interference, what type of interference occurs when light reflects off a medium with a higher refractive index?
  • Step 1: Understand that light can reflect off surfaces.
  • Step 2: Know that when light reflects off a medium with a higher refractive index, it undergoes a phase change.
  • Step 3: Recognize that this phase change is π (which is equivalent to 180 degrees).
  • Step 4: Learn that this phase change can lead to destructive interference when the light waves combine.
  • Step 5: Conclude that the type of interference that occurs in this situation is destructive interference.
No concepts available.
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