Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page 2
... pencil . " The most convenient form in which to imagine a pencil is a solid cone of rays , of which the centre of light is the vertex . ( iv ) The middle ray , or axis of the cone of rays , is called the " Axis " of the pencil * . ( v ) ...
... pencil . " The most convenient form in which to imagine a pencil is a solid cone of rays , of which the centre of light is the vertex . ( iv ) The middle ray , or axis of the cone of rays , is called the " Axis " of the pencil * . ( v ) ...
Page 3
... pencils of light falling upon plane surfaces and others in all such cases , unless expressly mentioned , we shall suppose that the axis of the pencil falls perpendicularly on the sur- face . ( vi ) Any substance through which light ...
... pencils of light falling upon plane surfaces and others in all such cases , unless expressly mentioned , we shall suppose that the axis of the pencil falls perpendicularly on the sur- face . ( vi ) Any substance through which light ...
Page 9
... pencil from Q , of which QA is the axis . After striking the mirror it becomes a divergent pencil from 4 , according to our definition of a divergent pencil in Art . 3 ( v ) , for the rays meet the eye as if they came from one point ...
... pencil from Q , of which QA is the axis . After striking the mirror it becomes a divergent pencil from 4 , according to our definition of a divergent pencil in Art . 3 ( v ) , for the rays meet the eye as if they came from one point ...
Page 11
... pencil of rays from an object to the eye , E Fig . 6 . M M after any number of reflexions , we shall make use of an ex- tension of this rule - viz . : ( 1 ) Join the eye to last image , and shade to the eye from the points where these ...
... pencil of rays from an object to the eye , E Fig . 6 . M M after any number of reflexions , we shall make use of an ex- tension of this rule - viz . : ( 1 ) Join the eye to last image , and shade to the eye from the points where these ...
Page 13
... pencil of rays which fall first on the mirror M ̧M „ , in order to save confusion : but it is easy to see that in pre- cisely the same manner there will be a series of images formed by a pencil of rays which fall first on NN , of which ...
... pencil of rays which fall first on the mirror M ̧M „ , in order to save confusion : but it is easy to see that in pre- cisely the same manner there will be a series of images formed by a pencil of rays which fall first on NN , of which ...
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a₁ acceleration angle angular velocity arrow axes axis of rotation axle center of gravity cloth coefficient of friction compression concurrent forces consider constant cord cos² couple Crown 8vo curve cylinder diameter direction disk distance dt dt Edition equal fcap Find the center fly wheel forces acting formula gravity axis hammer horizontal inch inertia with respect kinetic energy length lens line of action M₁ M₂ mass mirror moment of inertia motion moving P₁ P₂ pencil pendulum perpendicular plane point of application preceding problem prism pulley R₁ radians per second radius rays refraction represented resistance revolutions revolutions per minute rigid body seen shaft shown in Fig Simpson's Rule speed square Suppose surface T₁ tangential tension tion v₁ vertical weight work-energy equation x-axis zero