PhysicsAppleton, 1878 - 149 páginas |
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Página 92
... ray of light strikes a polished surface , the reflected ray rises from the surface with the same slope as the ray that strikes the surface falls towards it , and both rays , if you could imagine them squeezed flat against the surface ...
... ray of light strikes a polished surface , the reflected ray rises from the surface with the same slope as the ray that strikes the surface falls towards it , and both rays , if you could imagine them squeezed flat against the surface ...
Página 96
... ray of light will be bent in passing through a prism . This is exhibited in figure 33 , from which you see that the ray is bent towards the thick part of the prism ; in fact , the direction of the ray is entirely changed . Fig . 34 ...
... ray of light will be bent in passing through a prism . This is exhibited in figure 33 , from which you see that the ray is bent towards the thick part of the prism ; in fact , the direction of the ray is entirely changed . Fig . 34 ...
Página 100
... Light are differently bent . — I have shown you how a ray of light is bent in passing through a prism . I have now to tell you that this bending is not the same for every kind of light . In fig . 38 we see how a ray of red light is bent ...
... Light are differently bent . — I have shown you how a ray of light is bent in passing through a prism . I have now to tell you that this bending is not the same for every kind of light . In fig . 38 we see how a ray of red light is bent ...
Página 101
... light is in reality composed of a great many differently coloured rays mixed together , and that those rays are in ... ray from one another . VIOLET P GREEN S RED E Fig . 38 . Suppose , for instance , that we have a narrow vertical or up ...
... light is in reality composed of a great many differently coloured rays mixed together , and that those rays are in ... ray from one another . VIOLET P GREEN S RED E Fig . 38 . Suppose , for instance , that we have a narrow vertical or up ...
Página 103
... rays of light are bent by a prism into different places , so that a prism separates all the elements of a compound ray of light . And now , before concluding , let us study a little the nature of heat . 75. Nature of Heat . - We have ...
... rays of light are bent by a prism into different places , so that a prism separates all the elements of a compound ray of light . And now , before concluding , let us study a little the nature of heat . 75. Nature of Heat . - We have ...
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