what is lens formula?
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The relation between distance of object, distance of image and focal length for a lens is called lens formula. ... Distance of object and image is measure from the optical centre of the lens. The sign for distance is given as per convention. The lens formula is valid for all situations for spherical lens.
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Lens equation or lens formula is an equation that relates the focal length, image distance, and object distance for a spherical mirror. It is given as, Lens Formula - 1/u + 1/v = 1/f. where. v = Distance of the image from the lens.
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