An Elementary Treatise on Geometrical Optics ... |
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Page 9
... Hence if a ray of light be incident from a rarer medium on a denser , the ordinary law of refraction always gives a direction for the refracted ray . If , on the other hand , o ' be given , sin o may happen to be greater than unity and ...
... Hence if a ray of light be incident from a rarer medium on a denser , the ordinary law of refraction always gives a direction for the refracted ray . If , on the other hand , o ' be given , sin o may happen to be greater than unity and ...
Page 16
... Hence OC being the incident ray , CR will be the direction of the reflected ray . The reflected rays corresponding to the different incident rays will thus all pass through the point O ' , and the re- flected pencil which is made up of ...
... Hence OC being the incident ray , CR will be the direction of the reflected ray . The reflected rays corresponding to the different incident rays will thus all pass through the point O ' , and the re- flected pencil which is made up of ...
Page 23
... Hence in the limit when R approaches very near to A , and q to F , whence , if QO . FA = μFO.QA , AO = r , AQ = u , AF = v , ( ru ) v = μ ( r− v ) u , : . μru - rv = ( μ − 1 ) uv , or dividing by urv μ v - 1 μ И 1 30. The formula ...
... Hence in the limit when R approaches very near to A , and q to F , whence , if QO . FA = μFO.QA , AO = r , AQ = u , AF = v , ( ru ) v = μ ( r− v ) u , : . μru - rv = ( μ − 1 ) uv , or dividing by urv μ v - 1 μ И 1 30. The formula ...
Page 25
... Hence consistently with the usual geometrical interpretation of positive and negative , the line given geometrically by the equation ( 1 ) when μ = −1 is a line QS below QN , inclined to QN at an angle equal to the angle of incidence ...
... Hence consistently with the usual geometrical interpretation of positive and negative , the line given geometrically by the equation ( 1 ) when μ = −1 is a line QS below QN , inclined to QN at an angle equal to the angle of incidence ...
Page 26
... Hence AF or v = 1 И = r 2 · This position of the point F is sometimes called the principal focus of the reflecting surface . Similarly from the formula , putting u∞ , or 1 И μ ข - 1 = μ - 1 = 0 , we get v = μ - 1 ° μη The point . F ...
... Hence AF or v = 1 И = r 2 · This position of the point F is sometimes called the principal focus of the reflecting surface . Similarly from the formula , putting u∞ , or 1 И μ ข - 1 = μ - 1 = 0 , we get v = μ - 1 ° μη The point . F ...
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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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