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All Journal JPFT (Jurnal Pendidikan Fisika Tadulako Online) Jurnal TELUK: Teknik Lingkungan UM Kendari
Suriani, Febri
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science

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Studi Peredaman Intensitas Cahaya oleh Berbagai Warna Filter Menggunakan Lampu LED dan Lux Meter Mahendra, Muhamad Iqbal; Nurhamidah, Nurhamidah; Sholeh, Moh Ismail; Suriani, Febri; Sefini, Rien
JPFT (Jurnal Pendidikan Fisika Tadulako Online) Vol. 14 No. 1 (2026): JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jpft.v14i1.5555

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh warna filter terhadap intensitas cahaya yang diteruskan dari sumber cahaya lampu LED serta menentukan tingkat transmisi dan peredaman cahaya pada berbagai jarak antara sumber dan sensor. Penelitian ini menggunakan metode eksperimen langsung dengan pengukuran intensitas cahaya menggunakan aplikasi Lux Meter pada jarak 20 cm, 30 cm, dan 40 cm. Variasi filter warna yang digunakan meliputi kuning, oranye, hijau, merah, dan biru, serta kondisi tanpa filter sebagai pembanding. Hasil penelitian menunjukkan bahwa warna filter berpengaruh nyata terhadap intensitas cahaya yang diteruskan. Rata-rata intensitas cahaya yang diperoleh yaitu tanpa filter 168 lux, kuning 131,3 lux, oranye 78,3 lux, merah 83,3 lux, biru 65,3 lux, dan hijau 39 lux. Filter kuning memiliki transmisi cahaya tertinggi, sedangkan filter hijau menunjukkan tingkat peredaman paling besar. Selain itu, intensitas cahaya menurun seiring bertambahnya jarak sumber terhadap sensor, sesuai dengan Hukum Kuadrat Terbalik (Inverse Square Law). Dengan demikian, penelitian ini membuktikan bahwa perbedaan warna filter secara signifikan memengaruhi kemampuan transmisi dan peredaman cahaya dari sumber LED.
Analisis Temporal Kualitas Udara dan Variasi Suhu di Kota Palembang Berdasarkan Data IQAir Putri, Jamiatul Khairunnisa; Diansyah, Pras; Destina, Destina; Suriani, Febri; Seftini, Rien
Jurnal TELUK: Teknik Lingkungan UM Kendari Vol. 6 No. 1 (2026): Edisi Juni Tahun 2026 Jurnal TELUK: Teknik Lingkungan UM Kendari
Publisher : Universitas Muhammadiyah Kendari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51454/teluk.v6i1.1732

Abstract

Palembang is one of Indonesia’s major cities, characterized by high levels of transportation, trade, and development activity. The intensity of these activities can affect urban environmental conditions, including air quality and fluctuations in temperature over time. This study aims to analyze the temporal changes in air quality and temperature variations in Palembang City during the period of May 1–14, 2026, and to examine the relationship between the two variables. The data used consist of the Air Quality Index (AQI) obtained from IQAir and air temperature data from BMKG. The research method employed is a descriptive quantitative approach with statistical analysis, including descriptive analysis, time series graphs, Pearson correlation, simple linear regression, and t-test. The results show that the AQI values fall within the moderate category, ranging from 52 to 88, while the air temperature ranges from 26.8°C to 29.2°C and tends to be relatively stable. The correlation analysis indicates a negative relationship between temperature and AQI with a coefficient of -0.401, meaning that an increase in temperature tends to be followed by a decrease in AQI values. However, this relationship is not statistically significant (p > 0.05). The linear regression results also show that temperature does not have a significant effect on air quality. Thus, it can be concluded that changes in air quality in Palembang City are not solely influenced by air temperature, but also by other factors such as transportation activities, vehicle emissions, and other meteorological conditions.
Co-Authors Destina, Destina Diansyah, Pras Mahendra, Muhamad Iqbal Nurhamidah Nurhamidah Putri, Jamiatul Khairunnisa Sefini, Rien Seftini, Rien Sholeh, Moh Ismail