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What is focal length. |
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Answer» the distance between the pole and principal focus of a spherical mirror is called the focal length. The distance between the pool and principal focus of a spherical mirror is called the focal length 1/2 of center of curvature is called focal length.------------------------------------------------------------- The distance between the pool and the prince and the principal focus of a spherical The distance between F ( focal point/focus) and P (pole) is called focal length.Formula=R/2. What is harmons |
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