Innovation in Teaching and Learning During Covid-19 Pandemic and Beyond: Absorption and Reflection Spectra with Low Cost Spectrometer

The work demonstrated that a low-cost spectrometer and ImageJ serve as an accurate, reliable, robust model tool for learners to grasp abstract concepts in the Introductory Physics Lab Course context. design was self-paced while promoting active peer learning students. Image analysis within experimental activity adds novelty of lesson. Within accuracy, measurement shown correctly identify absorption spectra Potassium Dichromate, Methylene Blue, Permanganate describe subtractive color-mixing where Cyan absorbs Red accurately, Magenta Green, Yellow Blue.