An Elementary Treatise on Geometrical Optics ... |
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Page 5
William Steadman Aldis. any point is the straight line joining that point with the centre of the sphere . 10. If a ray of light in its progress from the original point from which it emanates comes to the surface of a dif- ferent medium ...
William Steadman Aldis. any point is the straight line joining that point with the centre of the sphere . 10. If a ray of light in its progress from the original point from which it emanates comes to the surface of a dif- ferent medium ...
Page 12
... centre of the sphere . Show that after refraction its direction will cut the axis at a distance from the centre of the sphere . r - μ 17. A ray of light proceeds from one point P of an ellipse , and falls upon a reflecting plane at one ...
... centre of the sphere . Show that after refraction its direction will cut the axis at a distance from the centre of the sphere . r - μ 17. A ray of light proceeds from one point P of an ellipse , and falls upon a reflecting plane at one ...
Page 13
... centre . Find the angle of incidence . 22. The length of the path of a ray which passes through two plates of different media in contact , bounded by parallel planes , is a √3 in the first medium and 2c in the second . The thicknesses ...
... centre . Find the angle of incidence . 22. The length of the path of a ray which passes through two plates of different media in contact , bounded by parallel planes , is a √3 in the first medium and 2c in the second . The thicknesses ...
Page 14
... centre of a refracting sphere whose radius is r and refractive index μ . Prove that the extreme incident rays on emergence intersect a screen touching the sphere at the point opposite to the origin of light , in a circle , whose radius ...
... centre of a refracting sphere whose radius is r and refractive index μ . Prove that the extreme incident rays on emergence intersect a screen touching the sphere at the point opposite to the origin of light , in a circle , whose radius ...
Page 20
... centre of the sphere must con- sequently lie in AQ . Join Let QR be any ray of the pencil , incident at R. OR , and draw Rq so as to make the angle ORq equal to RA Վ Q the angle ORQ , then it is clear that Rq 20 REFLECTION AND ...
... centre of the sphere must con- sequently lie in AQ . Join Let QR be any ray of the pencil , incident at R. OR , and draw Rq so as to make the angle ORq equal to RA Վ Q the angle ORQ , then it is clear that Rq 20 REFLECTION AND ...
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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 cos² 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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