A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 618
he lens on the side remotefrom the object. EXPT. 128.—Focal length of a converging lens. Place a converging lensupright by fixing it in a slit in a cork, as shown at L (Fig. 543). At some XLVI OPTICAL CENTRE OF A LENS 593 distance from L place a blanket pin A. The lens produces an image ofA at A,… … Fig. 543.—Measurement of focal length of a converging lens. in position. Measure AL and BL, and calling them u and v, calculate /.Repeat for a number of distances, and tabulate the results as describedon p. 570. Optical centre of a lens.—For every lens there is some point forwhich the rays passing…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
