. A text book of physics, for the use of students of science and engineering . QS? N. V4f FT <& 20. a (a) Fig. 600.—Laurents saccharimeter. )f the rotation produced. Owing to ambiguity as to its value when:he rotation approaches 90° or 180°, two lengths of tube BC aremployed, one of which is 10 cm. long and the other 20 cm. Onerotation must now be twice the other, which fact removes the ambi-guity in the original reading. It is not possible to judge accurately when complete extinctionoi the light occurs, and therefore the plate E is introduced in Laurentssaccharimeter. This plate is made in
. A text book of physics, for the use of students of science and engineering . QS? N. V4f FT <& 20. a (a) Fig. 600.—Laurents saccharimeter. )f the rotation produced. Owing to ambiguity as to its value when:he rotation approaches 90° or 180°, two lengths of tube BC aremployed, one of which is 10 cm. long and the other 20 cm. Onerotation must now be twice the other, which fact removes the ambi-guity in the original reading. It is not possible to judge accurately when complete extinctionoi the light occurs, and therefore the plate E is introduced in Laurentssaccharimeter. This plate is made in two half A (Fig. 601) being of glass, the planeof polarisation for this half is unchanged, andis shown by the arrow pv The half B consistsof a crystalline plate of such thickness that theplane of polarisation of the light in passingthrough it is rotated through such an anglethat it assumes the position indicated by the
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjectphysics
