Student recognition of interference and diffraction patterns: An eye-tracking study
| Autor: | Maja Planinić, Marijan Palmović, Andreja Bubić, Lana Ivanjek, Ana Susac |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Diffraction
genetic structures Computer science QC1-999 education Physics Education Research General Physics and Astronomy wave optics pattern recognition double slit single slit diffraction grating eye movements dwell time Interference (wave propagation) 01 natural sciences Education Optics 0103 physical sciences 010306 general physics Diffraction grating LC8-6691 business.industry 4. Education Physics 05 social sciences 050301 education Eye movement Physical optics Special aspects of education NATURAL SCIENCES. Physics eye diseases PRIRODNE ZNANOSTI. Fizika Pattern recognition (psychology) Eye tracking bacteria Monochromatic color sense organs business 0503 education |
| Zdroj: | Physical Review Physics Education Research, Vol 16, Iss 2, p 020133 (2020) Physical Review Physics Education Research Volume 16 Issue 2 |
| ISSN: | 2469-9896 |
| DOI: | 10.1103/PhysRevPhysEducRes.16.020133 |
| Popis: | Previous studies have demonstrated that students have difficulties in applying the wave model of light to explain single-slit diffraction and double-slit interference patterns. In this study, we investigated if students could recognize typical interference and diffraction patterns at all. Eye movements of high-school students were measured while they were identifying patterns produced by monochromatic light on a double slit, single slit, and diffraction grating, and by white light on a diffraction grating. Most students had difficulties with recognizing double-slit interference pattern and diffraction grating pattern of monochromatic light. Identification of the single-slit diffraction pattern was easier probably due to its distinguishable central maximum. The easiest task for students was recognizing the diffraction pattern of white light on an optical grating. Eye-tracking data suggested that even students who incorrectly answered this question were aware that the diffraction grating separates white light into colors. Additionally, eye tracking revealed that students who identified patterns correctly attended more the correct pattern than other options, thus corroborating previous findings. Overall, the results indicate that the recognition of interference and diffraction patterns is quite demanding for students, suggesting that more attention should be paid to observing and understanding basic wave optics phenomena. |
| Databáze: | OpenAIRE |
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