608896
Description
Mind Map by Rosie Rigby, updated more than 1 year ago
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Created by Rosie Rigby
about 11 years ago
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Refraction and Diffraction
- Diffraction- waves spreading out
- All waves spread out at the edges when they pass
through a gap or pass an obstacle
- The narrower the gap the more the waves spread out.
- The wider the gap the less the waves spread out.
- The wider the gap the less the waves spread out.
- The narrower the gap the more the waves spread out.
- Radio waves and hills:
- The waves are so large that when they come into contact with hills, they may not defract fully which is why signal levels can be so poor
- The waves are so large that when they come into contact with hills, they may not defract fully which is why signal levels can be so poor
- All waves spread out at the edges when they pass
through a gap or pass an obstacle
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