A course of experiments in physical measurement (1897)
Whiting, Harold, d. 1895 · Boston, D.C. Heath and Co. · leaf 1200
ality of the angles KGH and KHG withinthe prism, follows that of the angles BGF and CHI outsideof the prism ; these are accordingly each equal to the angleof incidence, i. Now the ray of light is deviated at thepoint G through an angle D GF, and at H through an equalangle; hence the total angle of… … (t) Index of Refraction of a Lens. When waves of lightfrom a point B are brought to a focus at H, it is evident thatin a given length of time different distances are traversed bydifferent portions of the wave. Drawing the arcs AFI andADI with B and H as centres, also the straight line AET, wesee…
Physics
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