Exam-style question
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What is phase difference in wave interference?.
- A.The difference in distance traveled by two waves.
- B.The difference in time taken for two waves to reach a point.
- C.The difference in the angle of the wavefronts of two waves.
- D.The difference in the maximum displacement of two waves.
Model answer
What a good answer should say
- The difference in the angle of the wavefronts of two waves.
Explanation
Why this works
Phase difference is defined as the difference in the phase angle of two waves at a given point in time. It is crucial for determining the type of interference (constructive or destructive) that occurs when the waves overlap, as it directly relates to how in-phase or out-of-phase the waves are.
Common mistake
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