Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 249
dfall on B. What would happen if Bwere removed ? On which screen,then, would the light be the leastintense? Prom the figure, determinethe law of intensity of light. Fig. 3. Ex. 906. Divide a triangle into two equivalent parts by a line drawnfrom a given point in one of its sides. Hint. Let M be the…
Geometry, Plane · Geometry, Solid
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