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Coherent or incoherent

Exercise and reference answers

Left
Coherent
Items
  1. Item
    Steady phase gap
    Answer
    Coherent
  2. Item
    Stable pattern
    Answer
    Coherent
  3. Item
    Two tuned needles
    Answer
    Coherent
  4. Item
    Two separate lamps
    Answer
    Incoherent
  5. Item
    Phase gap varies
    Answer
    Incoherent
  6. Item
    Intensities add up
    Answer
    Incoherent
Right
Incoherent
Instructions
Swipe left for coherent, right for incoherent.

Explanation

_Source: syllabus Physics Part II, Chapter 10, Wave Optics._
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