Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 372
angle, asLO, cannot emerge from the medium, and consequently isnotf refracted* Experiment shows that all such rays undergointernal reflection ; e.g. the ray L 0 is reflected in the direc-tion ON. Reflection in this case is perfect, and hence iscalled total reflection. Total reflection occurs when… … Fig. 268. 354 ETHER DYNAMICS. angle diminishes as the refractive index ^ increases. Forwater it is about 48^°; for flint glass, 38° 41; and for ,thediamond, 23° 41. Liglit-waves cannot, therefore, pass out ofwater into air with a greater. angle of incidence than 48^°.The brilliancy of gems,…
Physics
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