Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 456
ges arc in the same line. Placetwo pins a few inches apart in line with the two images,at the points 0 and D. Use much care in getting theseimages and pins all exactly in line. Remove the glass and draw the lineABE, BO, and CD. Then ABCB repre-sents the path of the light as it passedfrom the pin at…
Physics
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