Stewart, Balfour, 1828-1887 · Toronto : James Campbell · leaf 105
Fig- 33. \Vx. en Viewed standing up it has the appearance of fig.34. Such a piece of glass is calleda prism. Let us now see in whatmanner a ray of light will be bentin passing through a prism. Thisis exhibited in figure i^i, fromwhich you see that the ray is benttowards the thick part of the… … HEATED BODIES.] PHYSICS. 97 through a wedge-shaped piece of glass, it is bent to-wards the thick part of the wedge. 71. Lenses, images given by them.—Now letus vary the shape of the piece of glass in the followingmanner. Let the piece of glass be circular like a cake,only thickest in the middle and…
Physics
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