 | John A. Bower - 1879 - 186 pages
...themselves of these facts. This is called the law of reflection, and is generally worded thus : 1. The angle of reflection is always equal to the angle of incidence. We should remark here, that the incident light is that from the source of light itself, be it from... | |
 | Joseph C. Martindale - 1881 - 204 pages
...motion. At what angle does the ball leave the solid body? It bounds off from the solid body, so that the angle of reflection is always equal to the angle of incidence, as is shown in Fig. 39. How may a stone be skipped on a smooth pond ? A stone may be skipped, by throwing... | |
 | Edwin James Houston - 1881 - 220 pages
...transparent or translucent. When light is reflected from a body, the direction of the light is changed. The angle of reflection is always equal to the angle of incidence. When light enters a transparent substance obliquely to the surface, it is refracted or bent out from... | |
 | Charles Harrison Vilas - 1882 - 164 pages
...incidence ABD is equal to the angle of reflection CB D. reflected obliquely; or as optically expressed, the angle of reflection is always equal to the angle of incidence. A concave mirror may be regarded as the interior surface of a portion or segment of a hollow sphere.... | |
 | Charles Harrison Vilas - 1882 - 164 pages
...incidence ABD isequal to the angle of reflection CB D. reflected obliquely; or as optically expressed, the angle •of reflection is always equal to the angle of incidence. A concave mirror may be regarded as the interior surface of a portion or segment of a hollow sphere.... | |
 | Frederick Hungerford Bowman - 1882 - 352 pages
...Surfaces. — Curved surfaces reflect rays of light in the same way that plane surfaces do : viz., that the angle of reflection is always equal to the angle of incidence. The rays, however, after being reflected, are no longer parallel, but converge towards one point, which... | |
 | John Ogilvie - 1883 - 834 pages
...thrown back or reflected, and thus forms what is called an echo, the law of the reflection being that the angle of reflection is always equal to the angle of incidence. Sounds are usually classified under the two heads of noute* and musical sound*. A musical sound is... | |
 | Augusta Jane Wilson - 1883 - 394 pages
...tablets, on which man writes whatever pleases him best. In sociology, as well as physics and dynamics — the angle of reflection is always equal to the angle of incidence — the psychologic rebound is ever in proportion to the mental pressure, one extreme invariably impinges... | |
 | Edwin James Houston - 1884 - 224 pages
...transparent or translucent. When light is reflected from a body, the direction of the light is changed. The angle of reflection is always equal to the angle of incidence. When light enters a transparent substance obliquely to the surface, it is refracted or bent out from... | |
 | Leonard Landois - 1885 - 700 pages
...weakened. Reflection of the sound-waves occurs when they impinge upon a solid obstacle, in which case the angle of reflection is always equal to the angle of incidence. Wave Movements.— We distinguish I. Progressive wave movements which occur in two forms— 1. As longitudinal... | |
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... as the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged. 
