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Physics from scratch: Lenses, structures, eye defects, physics, optics
Another episode of Physics from scratch. This time I will show you several types of lenses. I will draw the construction of images in concave and convex lenses. I'll calculate the magnification, show the focus of the lens and the focusing power of the lens. More on the focusing ability appeared in the video about mirrors. I will show you what is short-sightedness and farsightedness. I will tell you what astigmatism is. In this way, I will mention a few eyesight defects. You will learn what are the features of the images created in the lenses. There will be biconvex and biconcave lenses. All this and more in the next optics and physics video.