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All Journal AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics
Permono Adi Putro
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Education Mathematics Physics

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Exploration of the Concept of Light Duality through Quantum Interference Simulation: A Virtual Laboratory-Based Approach Permono Adi Putro; Suryana, Vidya Az-zahra; Sinta Nopianti
TIME in Physics Vol. 3 No. 2 (2025): September
Publisher : Universitas Mandiri

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Abstract

The phenomenon of light duality is a fundamental concept in modern physics that states that light has a dual nature, namely as a wave and a particle. Understanding this concept often becomes a challenge in learning due to the limitations of laboratory facilities to directly observe interference and diffraction phenomena. This study aims to explore the concept of light duality through quantum interference simulations based on a virtual laboratory using PhET Interactive Simulations from the University of Colorado Boulder. The research was conducted in a descriptive-quantitative manner by varying three main parameters, namely the number of slits (1, 2, and 3), slit width (0.04–0.4 mm), and light wavelength (400–700 nm). Each configuration was systematically simulated to observe the resulting diffraction and interference patterns. Data analysis was carried out using descriptive and inferential statistics, including Shapiro-Wilk, Levene, Kruskal-Wallis tests, as well as one-way ANOVA to identify the relationship between optical variables and the characteristics of interference patterns. The research results indicate that with variations in the number and width of slits, light tends to behave like particles with concentrated intensity, whereas with variations in wavelength, the widening light-dark pattern demonstrates wave properties. These findings reinforce the concept of light duality and confirm the effectiveness of virtual laboratories as a learning medium for visually and interactively understanding complex quantum phenomena.  
Pendampingan Mahasiswa Universitas Mandiri dalam Kompetisi National Scientific Essay Competition Permono Adi Putro; Asep Priatna; Aji Fauziana Ridwan
Amaliah: Jurnal Pengabdian Kepada Masyarakat Vol 10 No 1 (2026): Amaliah: Jurnal Pengabdian kepada Masyarakat
Publisher : LPPI UMN AL WASHLIYAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/ajpkm.v10i1.5976

Abstract

The student mentoring program in the National Scientific Essay Competition (NSEC) is designed to improve scientific literacy, critical thinking skills, and presentation skills of students through five systematic stages. This study aims to describe the mentoring process, which includes searching for innovative ideas, essay writing, work registration, internal assessment, and final presentation preparation, as well as analyzing its impact on students' competitive readiness. Mentoring is carried out through an academic scaffolding approach, collaborative discussions, rubric-based evaluation, and mock presentations as the main strategies for strengthening competencies. The results show that two students from Universitas Mandiri successfully entered the NSEC TOP 10 Finalists, which indicates the effectiveness of the mentoring model in improving the quality of work, scientific communication skills, and student confidence. In addition, the direct experience in the final presentation provided practice-based learning that broadened the academic insights of the participants. These findings confirm that structured mentoring can be a relevant and applicable strategy in improving students' academic capacity and preparing them for national-level scientific competitions.
Co-Authors Aji Fauziana Ridwan Asep Priatna Sinta Nopianti Suryana, Vidya Az-zahra