An Elementary Treatise on Geometrical Optics |
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Page 9
... original me- dium , in a direction determined according to a certain law . ( ii ) Another portion passes into the new medium , having its direction changed according to another law ; this portion is said to be refracted into the new ...
... original me- dium , in a direction determined according to a certain law . ( ii ) Another portion passes into the new medium , having its direction changed according to another law ; this portion is said to be refracted into the new ...
Page 10
... original ray produced must be turned in order to bring it into the position of the final ray , is called the deviation of the ray . The law according to which a ray of light is reflected at a surface may be thus stated . The angles of ...
... original ray produced must be turned in order to bring it into the position of the final ray , is called the deviation of the ray . The law according to which a ray of light is reflected at a surface may be thus stated . The angles of ...
Page 14
... that the angle between their original directions is any one of a series of ( n − 1 ) angles in arith- metical progression . 4. Two plane mirrors inclined at an angle intersect in 14 [ CHAP . II . REFLEXION OF RAYS .
... that the angle between their original directions is any one of a series of ( n − 1 ) angles in arith- metical progression . 4. Two plane mirrors inclined at an angle intersect in 14 [ CHAP . II . REFLEXION OF RAYS .
Page 16
... original medium , B , C ...... the other media . Let & be the angle of incidence on B , 4 , the cor- responding angle of refraction . Then & , will be the angle of incidence on C , and so on . The final angle of refraction 1 A D R S ...
... original medium , B , C ...... the other media . Let & be the angle of incidence on B , 4 , the cor- responding angle of refraction . Then & , will be the angle of incidence on C , and so on . The final angle of refraction 1 A D R S ...
Page 23
... original ray . 6. A ray of light is incident on a refracting sphere , whose refractive index is √3 . It is refracted into the sphere and when it is incident on the inner surface of the sphere , part is reflected internally , and part ...
... original ray . 6. A ray of light is incident on a refracting sphere , whose refractive index is √3 . It is refracted into the sphere and when it is incident on the inner surface of the sphere , part is reflected internally , and part ...
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An Elementary Treatise on Geometrical Optics (Classic Reprint) R. S. Heath No preview available - 2016 |
Common terms and phrases
achromatic angle of incidence aperture apparent magnitude astronomical telescope axis B₁ called caustic centre circle coloured concave concave lens conjugate foci converge convex lens corresponding Crown 8vo denote direction distinct vision Edited emerge parallel emergent ray equal equation extreme pencils eye-glass eye-lens eye-piece field of view final image focal length focal plane glass Hence illuminated inches incident ray inclined infinity instrument k₁ lenses linear magnitudes luminous magnifying power meet nodal points normal object object-glass object-mirror P. G. Tait pair of conjugate perpendicular placed plane mirror point Q position principal focus principal plane principal points prism pupil radii radius ray of light rays diverging reflected rays reflexion refracting surface refractive index respectively retina right angles second medium seen small mirror spectrum sphere spherical surface subtended suppose tangent theorem triangles vertex visual angle
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