Summary
Samenvatting stralen leer
- Course
- Institution
-alle zichtbare stralen -UVA -UVB -onzichtbare stralen -golflengtes
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By: mgraccuglia • 3 year ago
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StralenleerElektromagnetische spectrum:
Alle stralen die door de zon gezonden worden – zichtbaar en niet zichtbaar
Iedere soort straling heeft zijn eigen golflengte
Hoe kort de golflengte, hoe schadelijker het is voor de mens
Zichtbare stralen
Licht = gevormd door alle kleuren in het kleurenspectrum
Licht kan gebroken worden door middel van een prisma
Licht valt uiteen in:
- Rood
- Oranje
- Geel
- Groen
- Blauw
- Violet
Laserstralen
- Laser: light amplification by stimulated emission of radiation (lichtversterking door
opgewekte uitstoot van straling) examenvraag mogelijk
- Met behulp van een kristal en een hoge elektrische spanning wordt een sterk
geconcentreerde smalle bundel evenwijdig licht van 1 golflengte opgewekt
Onzichtbare stralen
Kan het menselijk oog niet waarnemen
Infrarode stralen en ultraviolette stralen
Golflengtes boven de 780 NM noemen we infrarood, onder de 380 NM noemen we
ultraviolet.
Stralenleer
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