An Elementary Treatise on Geometrical Optics ... |
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Page 2
... luminous bodies . On the other hand , bodies which require the presence of some self- luminous body in order to ... point of any body which is seen . The quantity of light which proceeds from any material point of a body to the eye we ...
... luminous bodies . On the other hand , bodies which require the presence of some self- luminous body in order to ... point of any body which is seen . The quantity of light which proceeds from any material point of a body to the eye we ...
Page 4
... luminous patch resembling in its general shape the window , which is seen within the room ; and also by the fact ... point is called the normal to the plane` at that point . We know , from the example of the earth , which is really ...
... luminous patch resembling in its general shape the window , which is seen within the room ; and also by the fact ... point is called the normal to the plane` at that point . We know , from the example of the earth , which is really ...
Page 11
... point of the opposite side which he can see is 21 inches below the top . The cup is filled with water ; looking in the same direction he can just see the ... luminous point is placed at the focus of LAWS OF REFLECTION AND REFRACTION . 11.
... point of the opposite side which he can see is 21 inches below the top . The cup is filled with water ; looking in the same direction he can just see the ... luminous point is placed at the focus of LAWS OF REFLECTION AND REFRACTION . 11.
Page 12
William Steadman Aldis. 11. A luminous point is placed at the focus of an ellipse , the inner side of which can reflect light . Prove that any ray after two reflections from the curve will return to the focus from which it started , and ...
William Steadman Aldis. 11. A luminous point is placed at the focus of an ellipse , the inner side of which can reflect light . Prove that any ray after two reflections from the curve will return to the focus from which it started , and ...
Page 17
... luminous point at A ' similar to the original point at A. If there be a series of points above the mirror , each of them will have its corresponding point below the mirror , and thus the eye will see an exact copy of anything above the ...
... luminous point at A ' similar to the original point at A. If there be a series of points above the mirror , each of them will have its corresponding point below the mirror , and thus the eye will see an exact copy of anything above the ...
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Common terms and phrases
2nd edition 3rd edition 4th edition Aeneid angle of incidence astronomical telescope axis Book Camb Cambridge centre concave convex lens cosē Crown 8vo Demy 8vo diameter direction distance diverge emergence English equal eye-glass eye-lens eye-piece F. A. PALEY Fcap Fellow of St focal length foci formula French geometrical focus glass Grammar Greek Hence illumination image formed inches incident ray index of refraction J. H. FREESE John's College last Article late Fellow Latin lenses LL.D luminous point magnifying power Mathematical minimum deviation object object-glass obliquely parallel rays pass pencil pencil of light pencil of parallel perpendicular placed portion primary plane prism Professor radius ray of light reflected ray reflecting surface refracted ray refraction or reflection refractive index revised School screen Small post 8vo spectrum sphere spherical surface Translated triangle Trinity College v₁ vertex whence
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