Laboratory exercises in physics for secondary schools (1902)
Twiss, George Ransom, b. 1863 · New York, London, The Macmillan company · leaf 193
various musical instruments. CHAPTER VII LIGHT Exercise Number 35 bunsens photometer. law op inverse squares References A 267, 268 GP 286-288 J 7-10 C & C 238 H 447-449 S194 GE 223-225 H & W 276 W & H 366, 367 Purpose. — The purpose of this experiment is toverify the law of inverse… … A ^B C Fig. 41. — Simple form of Bunsens Photometer. the table beside the rule, whose face is just flush withtheir upper surfaces. Each block has a pair ofdiameters accurately scratched upon its upper surface 164 LIGHT 165 by means of a knife and square. One of the blocks.B. carries a pair of…
Physics
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