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![5.4] Formation of images in slide projector - YouTube](https://i.ytimg.com/vi/gVGXygzh2gE/maxresdefault.jpg "5.4] Formation of images in slide projector - YouTube")
5.4] Formation of images in slide projector - YouTube
DIY Projector Theory : PJOZ.com - DIY Zone
How to build a solar microscope | Popular Science
