Selective Light Transmittance in a Glue Stick During a Distance Lab.

This article discusses a home experiment kit designed for physics students to perform experiments at home during the COVID-19 pandemic. The focus of the experiment is to explain the phenomenon of a glue stick appearing white near a light source and turning orange towards the opposite side. The experiment involves constructing a homemade spectroscope, measuring the transmittance of different colored filters, and measuring the mean free paths for the glue at each filter wavelength. The results show that the transmittance of the glue stick strongly depends on the wavelength of the incident light, demonstrating selective transmission. The activity can be used to reinforce concepts related to the physical basis of the greenhouse effect and can be a substitute for campus lab activities in distance learning. [Extracted from the article]