9702 · 7.5
Polarisation
Imagine light as a wiggling rope. Usually, it wiggles in all directions at once. But sometimes, we can make it wiggle in just one specific direction! This fascinating phenomenon is called **polarisation**, and it's absolutely key to understanding the true nature of waves, especially light. It's how your sunglasses reduce annoying glare and even how some 3D movies create their effects! This pilot aligns with **Senpai Corner** AS notes (2025–2027) for topic **7.5**.
Need to know
What you need to know
- Only transverse waves can be polarized.
- Polarization means that vibrations are restricted to one direction.
- Waves can be polarised through a polariser or polarising filter.
- Example polaroid sunglasses.
- Polarising a wave reduces its amplitude.
Explanation
Polarisation
- Only transverse waves can be polarized.
- Polarization means that vibrations are restricted to one direction.
- Waves can be polarised through a polariser or polarising filter.
- Example polaroid sunglasses.