Study Notes
Diffraction is the bending of waves around obstacles and openings.
- Diffraction — the bending of waves around the edges of an obstacle or through an aperture. Example: Light waves bending around a door frame.
Exam Tips
Key Definitions to Remember
- Diffraction: The bending of waves around obstacles or through openings.
Common Confusions
- Confusing diffraction with refraction, which involves the change of wave direction when entering a different medium.
- Assuming diffraction only occurs with light waves, when it can occur with any type of wave.
Typical Exam Questions
- What is diffraction? Diffraction is the bending of waves around obstacles or through openings.
- How does the size of the aperture affect diffraction? Smaller apertures cause more noticeable diffraction.
- Can sound waves undergo diffraction? Yes, sound waves can also undergo diffraction.
What Examiners Usually Test
- Understanding of the concept of diffraction and its applications.
- Ability to distinguish between diffraction and other wave phenomena like refraction and reflection.