Optics and Optical Illusions | Experiment 1 - Optics: What is the focal length of a lens?
Experiment 1
Optics: What is the focal length of a lens?
Purpose/Hypothesis
In this experiment, you will identify the focal pointThe point at which rays of light converge or from which they diverge. of different lenses and measure their focal lengthsThe distance of a focus from the center of a lens or concave mirror.. When light rays pass through a lens, they converge at a single point, the focal point of the lens. The distance from the middle of the lens to the focal point is called the focal length. Every lens has its own focal length.
The focal length of a lens indicates where the image will be focused and how powerful the lens is. In general, a lens has two rounded surfaces
and its edges are fairly thin compared to its diameter. Focal length...
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