Behaviour of waves - P7
- Created by: Katie Cory
- Created on: 24-04-16 19:55
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- Behaviour of waves
- Refraction
- When waves cross a boundary between one medium and another.
- The frequency remains the same but there is a change in wavelength.
- This leads to a change in wave speed, which leads to a change in direction.
- Diffraction
- When waves more through a narrow gap or past an obstacle, they spread out from the edges.
- is most obvious when the...
- size of the gap is similar to, or smaller than, the wavelength of the wave.
- waves that pass the obstacles have long wavelengths.
- Refraction of White Light
- The colours that make up white light are refracted by different amounts as they pass through a prism
- Violet light is refracted most
- Red is refracted the least
- The refraction occurs because the colours that make up white light have different frequencies and wavelengths
- The colours that make up white light are refracted by different amounts as they pass through a prism
- Refraction
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