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undergraduate thesis
Fotoelektrični efekt pomoću LED izvora svjetlosti
2018. urn:nbn:hr:166:352255
Marjanović, Ana
University of Split
Faculty of Science
Department of Physics

Cite this document

Marjanović, A. (2018). Fotoelektrični efekt pomoću LED izvora svjetlosti (Undergraduate thesis). Split: University of Split, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:166:352255

Marjanović, Ana. "Fotoelektrični efekt pomoću LED izvora svjetlosti." Undergraduate thesis, University of Split, Faculty of Science, 2018. https://urn.nsk.hr/urn:nbn:hr:166:352255

Marjanović, Ana. "Fotoelektrični efekt pomoću LED izvora svjetlosti." Undergraduate thesis, University of Split, Faculty of Science, 2018. https://urn.nsk.hr/urn:nbn:hr:166:352255

Marjanović, A. (2018). 'Fotoelektrični efekt pomoću LED izvora svjetlosti', Undergraduate thesis, University of Split, Faculty of Science, accessed 20 November 2024, https://urn.nsk.hr/urn:nbn:hr:166:352255

Marjanović A. Fotoelektrični efekt pomoću LED izvora svjetlosti [Undergraduate thesis]. Split: University of Split, Faculty of Science; 2018 [cited 2024 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:166:352255

A. Marjanović, "Fotoelektrični efekt pomoću LED izvora svjetlosti", Undergraduate thesis, University of Split, Faculty of Science, Split, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:166:352255

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Metadata
TitleFotoelektrični efekt pomoću LED izvora svjetlosti
Title (english)Photoelectric effect using LEDs as light sources
AuthorAna Marjanović
MentorŽeljana Bonačić Lošić (mentor)
Committee memberŽeljana Bonačić Lošić (predsjednik povjerenstva)
Committee memberAnte Bilušić (član povjerenstva)
Committee memberMarin Kosović (član povjerenstva)
GranterUniversity of Split
Faculty of Science
(Department of Physics)
Split
Defense date and country2018-09-24, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract
Fotoelektrični efekt je pojava izbijanja elektrona s površine metala djelovanjem elektromagnetskog polja. Nosioci kvanta energije tog polja su fotoni. Kada metalnu ploču obasjamo svjetlošću, fotoni se sudaraju s elektronima i predaju im svoju energiju. Elektronima se tada poveća energija i ukoliko je energija fotona bila dovoljno velika, elektron će napustiti površinu metala. Energija fotona je proporcionalna njegovoj frekvenciji, odnosno obrnuto proporcionalna valnoj duljini. Stoga, da bismo radili eksperimente vezane za fotoelektrični efekt, potrebni su nam izvori monokromatske svjetlosti. Mogu se koristiti filteri koji će propuštati samo određenu valnu duljinu svjetlosti, ili LED izvori svjetlosti, koji su korišteni za mjerenja u ovom radu. Pomoću njih i vakumske fotočelije, eksperimentalno je dobivena vrijednost Planckove konstante, a pomoću vakumske fotoćelije dobivene su ovisnosti napona i intenziteta o udaljenosti izvora, te ovisnost napona o intenzitetu.
Abstract (english)
Photoelectric effect is the emission of electrons from a material by the action of electromagnetic field. The energy quantifiers are photons. When the metal plate is illuminated with light, the photons collide with the electrons and surrender their energy. The electrons then increase energy and if the photon energy is large enough, the electron will leave the surface of the metal. The energy of the photon is proportional to its frequency, i.e., inversely proportional to the wavelength. Therefore, in order to do experiments related to photoelectric effect, we need monochromatic light sources. We could use filters that will pass only a certain wavelength, or LED light sources, which were used for measurements in this work. Using those light sources and the vacuum photocell, the value of the Planck constant was experimentally obtained. Also, with the vacuum photocell, voltage dependence and intensity on source distance were obtained, as well as voltage dependence on intensity.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:166:352255
Study programmeTitle: Physics
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) fizike (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) fizike)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2018-12-14 16:25:12