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Apoxyus
hey can someone give me the formulas and resoning behind finding focal length, magnitude of radius curvature, and other optic stuff. Thank you.
The formula for finding focal length is f = (R1 * R2) / (R1 + R2), where R1 and R2 are the radii of curvature of the two surfaces of the lens.
The focal length of a lens determines the magnification and field of view of the image. A shorter focal length results in a wider field of view and a smaller image, while a longer focal length produces a narrower field of view and a larger image.
The lens power is inversely proportional to the focal length. This means that as the focal length increases, the lens power decreases, and vice versa.
The focal length of a lens can be measured by placing the lens in front of a light source and measuring the distance between the lens and the point where the light is focused to a sharp point. This is known as the focal length method.
Yes, the focal length of a lens can be changed by adjusting the distance between the two surfaces of the lens or by using additional lenses to alter the path of light. This is how zoom lenses are able to change their focal length and produce different magnifications.