Bibliographic Details
| Title: |
Reversibility of Light Disproves the Two-Prism Method. |
| Authors: |
Ng, Chiu-king1 (AUTHOR) ngchiuking@hotmail.com |
| Source: |
Physics Teacher. Nov2025, Vol. 63 Issue 8, p655-657. 3p. |
| Subjects: |
Optics, Physical optics, Optical properties, Visible spectra |
| Abstract: |
The article focuses on the theoretical proof of the unworkability of the two-prism method for recombining dispersed spectrum colors back into white light. It argues that the principle of reversibility of light reveals contradictions in the two-prism setup, where the emergent rays cannot converge to form a white ray. The author discusses an alternative four-prism arrangement that successfully disperses and recombines light, adhering to the principles of optics. Additionally, the article addresses the phenomenon of an "apparently white beam" produced by the two-prism setup, clarifying that it results from overlapping colors rather than true recombination. [Extracted from the article] |
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| Database: |
Engineering Source |
