ent beam as an axis, so as to keepthe angle of incidence always equal to the polarizing angle. If,for any position of the plate, the reflected light vanishes, thebeam in question is polarized in a plane perpendicular to theplane of incidence. Problems. 1. What must be the angle a, figure 108, in… … 222 LIGHT 3. Find the angle of polarization for glass whose index ofrefraction is 1.71. 4. Show that light that lias gone through a prism spectro-scope must be partly polarized. In what plane will be themaximum polarization \ CHAPTER XIII. 112. Methods of polarizing light.—113. The Nicol…
Light
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