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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2501.02257 |
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| _version_ | 1866912176798695424 |
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| author | Ortuno-Molina, Santiago Garmendia-Martinez, Adrian Munoz-Perez, Francisco M. Castro-Palacio, Juan C. Monsoriu, Juan A. |
| author_facet | Ortuno-Molina, Santiago Garmendia-Martinez, Adrian Munoz-Perez, Francisco M. Castro-Palacio, Juan C. Monsoriu, Juan A. |
| contents | In this work, we present a simple and low cost experiment designed to determine the infrared water absorption coefficient. We used a TV remote control as a point source of infrared light. The intensity after passing the light through different heights of a water column is measured with a solar cell connected to a speaker. The recorded signal, captured with a smartphone sound recorder, provides a practical demonstration of the Beer Lambert law. The collected data were fitted to the theoretical model, obtaining a very good agreement between the value of the water absorption coefficient obtained experimentally and that reported in the literature. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_02257 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Using a remote control to determine the infrared absorption coefficient in water Ortuno-Molina, Santiago Garmendia-Martinez, Adrian Munoz-Perez, Francisco M. Castro-Palacio, Juan C. Monsoriu, Juan A. Physics Education In this work, we present a simple and low cost experiment designed to determine the infrared water absorption coefficient. We used a TV remote control as a point source of infrared light. The intensity after passing the light through different heights of a water column is measured with a solar cell connected to a speaker. The recorded signal, captured with a smartphone sound recorder, provides a practical demonstration of the Beer Lambert law. The collected data were fitted to the theoretical model, obtaining a very good agreement between the value of the water absorption coefficient obtained experimentally and that reported in the literature. |
| title | Using a remote control to determine the infrared absorption coefficient in water |
| topic | Physics Education |
| url | https://arxiv.org/abs/2501.02257 |