A New Method Of Determining The Focal Length Of A Converging Lens

Excerpt from A New Method of Determining the Focal Length of a Converging Lens Incident to some work with a modified form of the F abry-perot interferometer, there has occurred tome a method for determining the focal length of a converging lens by measuring the linear diameter of a circular fringe in the real image formed by the lens in question. I have formulated the theory of the method and subjected it to experimental test. It is the purpose of this paper to present the method and discuss some of its features. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.