IB Physics SL C 3 1 Wavefronts and Rays Questions
Practise IB Physics SL C.3.1 by tracing wavefronts and rays through reflection, refraction, diffraction, mirrors, lenses and fibre optics.
- Syllabus
- First assessment 2025
- Course
- Physics SL
- Level
- SL
Exam points
- Draw wavefronts and rays with correct orientation, curvature and propagation direction.
- Construct lens, mirror or fibre-optic ray diagrams to locate an image or focus.
- Use wavefront spacing and geometry to explain diffraction or refraction changes.
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IB Physics SL C 3 1 Wavefronts and Rays Questions question 1
[Maximum number: 1]
A group of students is investigating refraction in a semi-circular glass block.
Light from a ray box enters the curved side of the block. The light passes through the block and leaves, refracted, at P .
Outline how the students can ensure that the light is not deflected at the curved surface.
measure P to be at the centre of the flat edge/side so that incident rays are aimed at P /go through radial lines
OR
check that the incident angle is 0∘ at every point of incidence
[1]
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