Teaching the absorption of light colours using an artificial rainbow

Yürümezoğlu, Kemal; Işık, Hakan; Arikan, Gizem; Kabay, Gözde

doi:10.1088/0031-9120/50/4/402

Cited by 10 publications

(7 citation statements)

References 5 publications

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“…The studies that strengthen the connection between light colors and pigment colors would be helpful in order to better understand the colors and to design better activities to teach the colors. Recently, related studies in this subject (Babič and Čepič 2009, Yurumezoglu et al 2015, Rosi et al 2016 indicated the importance of this situation from different perspectives.…”

Section: Discussionmentioning

confidence: 99%

Shadows constructing a relationship between light and color pigments by physical and mathematical perspectives

2017

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Full shadows, partial shadows and multilayer shadows are explained based on the phenomenon of the linear dispersion of light. This paper focuses on progressing the understanding of shadows from physical and mathematical perspectives. A significant relationship between light and color pigments is demonstrated with the help of the concept of sets. This integration of physical and mathematical reasoning not only manages an operational approach to the concept of shadows, it also outputs a model that can be used in science, technology, engineering and mathematics (STEM) curricula by providing a concrete and physical example for abstract concept of the empty set.

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Section: Discussionmentioning

confidence: 99%

Shadows constructing a relationship between light and color pigments by physical and mathematical perspectives

2017

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“…Several works have discussed the design of low cost spectrometer and its usage for in-class learning and simple technology applications in real life [17][18][19][20][21]. This work obtains the absorption spectra of various solutions by directly observing the missing spectral lines of the light source.…”

Section: Absorption Spectramentioning

confidence: 99%

“…One major challenge in this experiment is the wide absorption bands of the solutions and the closely-spaced spectral lines of the Mercury lamp; those spectral lines neighboring the upper or lower band of the absorption spectra will be affected which result in the suppressed intensity of the spectra (Figure 2C, D, and E). The suppression of the transmitted spectra can be attributed to the complex interaction between light and the medium it passes (concentration, optical path, states of matter, and others) [17][18][19][20][21][22][23][24][25]. along with the wavelength associated with the spectra peak is plotted in (E).…”

Section: Absorption Spectramentioning

confidence: 99%

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

Yusuf¹

2022

J. Phys.: Conf. Ser.

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

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“…A higher numbers of real life situations can be adapted to optics courses to engage students in learning physics. Previous studies attempted procedures on the formation of colours for teaching and learning [9][10][11]. This study using circumzenithal arc advances the availability of colours for stu dents and teachers.…”

Section: Pedagogical Implementations With a Circumzenithal Arcmentioning

confidence: 99%

A circumzenithal arc to study optics concepts with geometrical optics

Işık

2017

Phys. Educ.

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This paper describes the formation of a circumzenithal arc for the purpose of teaching light and optics. A circumzenithal arc, an optic formation rarely witnessed by people, is formed in this study using a waterfilled cylindrical glass illuminated by sunlight. Sunlight refracted at the top and side surfaces of the glass of water is dispersed into its constituent colours. First, multicolour arcs are observed on paper at the bottom of the glass. Then, a single arc for each colour is observed on the floor when the rays are allowed to propagate to the furthest points from the glass. The change in observations is explained by formulating an equation for the geometry of the situation. The formula relates each point on the first refracting surface for an incoming light ray to a point further from the second refracting surface. Then, a parallel graph is drawn to visualize the superposition of colours to the formation of a single arc. The geometrical optics studies in this paper exemplify the concept of Snell's law, total internal reflection and dispersion. The duration of the observation on a circumzenithal arc is limited by the altitude of the Sun in the sky. This study depends on the use of astronomy software to track solar altitude. Pedagogical aspects of the study are discussed for inquirybased teaching and learning of light and optics concepts.

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Teaching the absorption of light colours using an artificial rainbow

Cited by 10 publications

References 5 publications

Shadows constructing a relationship between light and color pigments by physical and mathematical perspectives

Shadows constructing a relationship between light and color pigments by physical and mathematical perspectives

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

A circumzenithal arc to study optics concepts with geometrical optics

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