Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 154
lens that anobject placed at either of them will have an linage at theother are called Conjugate Foci of the lens. REFRACTION OF LIGHT. 141 EXERCISE 23.* RELATION OF IMAGE-DISTANCE TO OBJECT-DISTANCE :CONJUGATE FOCI OF A LENS. Apparatus : The same lens that was used in Exercise 22. Ameter-rod.… … Fig. 106. bestos band, lighted up by the name behind, is the object the imageof which is to be received upon the screen. One end of the meter-rod is placed vertically beneath this illuminated hole. Place the screen at first at a distance from the object about equalto three times the focal length of…
Physics
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