IB Physics SL C.3.6 Coherence Question Bank
Practise IB Physics SL C.3.6 by identifying coherent sources, phase differences and the conditions that make stable interference patterns visible.
- Syllabus
- First assessment 2025
- Course
- Physics SL
- Level
- SL
C.3.6—Coherence question 1
This question is about interference.
Light from a laser is incident on two identical parallel slits. The light from the two slits produces a fringe pattern on a screen.
A central bright fringe is produced at C . The next bright fringe is produced at A . There is a dark fringe at B .
The light from the laser is coherent and monochromatic. Outline what is meant by the term
coherent.
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