

OPTO 1. kolokvij
Flashcard
•
Physics
•
University
•
Hard
Lv Rivaille
FREE Resource
Student preview

31 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Što obuhvaća optoelektronika?
Back
Obuhvaća generiranje, širenje i detekciju svjetla.
2.
FLASHCARD QUESTION
Front
Koje su prirode elektromagnetski valovi?
Back
Oni su dualne prirode: valne - kada se šire kroz prostor i čestične - kod interakcije s tvari.
3.
FLASHCARD QUESTION
Front
U kojem su odnosu valna duljina i frekvencija?
Back
U obrnuto proporcionalnom odnosu.
4.
FLASHCARD QUESTION
Front
Koja su dva suprotna dijela spektra (valna duljina, frekvencija)?
Back
Gama zračenje (veća frekvencija i manja valna duljina) i radiovalovi (manja frekvencija i veća valna duljina).
5.
FLASHCARD QUESTION
Front
Što se porastom temperature događa sa zračenjem crnog tijela?
Back
Porastom temperature ukupna izračena energija je veća (Stefan-Boltzmanov zakon). Kako raste temperatura tijela, tako se pomiče i maksimum krivulje prema višim frekvencijama (Wienov zakon).
6.
FLASHCARD QUESTION
Front
Kako je Planck objasnio emisiju zračenja crnog tijela?
Back
Emisiju toplinskog zračenja crnog tijela Planck je objasnio modelom zavisnih harmonijskih oscilatora koji mogu poprimiti samo diskretne iznose energija.
7.
FLASHCARD QUESTION
Front
Što je fotoefekt?
Back
Fotoelektrični učinak ili fotoefekt je fizikalna pojava koja nastaje kada djelovanjem elektromagnetskog zračenja dovoljno kratke valne duljine (npr. u vidljivom ili ultraljubičastom području spektra) dolazi do izbijanja elektrona iz obasjanog materijala (obično kovine).
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