Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc |
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Page 9
... 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 . An image through which the rays do not really pass , as q , is called ...
... 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 . An image through which the rays do not really pass , as q , is called ...
Page 25
... closer to the axis , the difference between QA and QR may be made as small as we please . Similarly Rq becomes Aq , where q is now the G. F. ray Thus QA QO QA or Aq Օզ 20 ୧୦ Aq III . ] 25 . REFLEXION AT A CURVED SURFACE .
... closer to the axis , the difference between QA and QR may be made as small as we please . Similarly Rq becomes Aq , where q is now the G. F. ray Thus QA QO QA or Aq Օզ 20 ୧୦ Aq III . ] 25 . REFLEXION AT A CURVED SURFACE .
Page 27
... becomes AQ Aq AO I = 2 AF AO where F is the prin- cipal focus . That is , F is midway between A and O , or the image of a star would be seen there , since a star is a very long way off . 22. There is now one point to notice to which we ...
... becomes AQ Aq AO I = 2 AF AO where F is the prin- cipal focus . That is , F is midway between A and O , or the image of a star would be seen there , since a star is a very long way off . 22. There is now one point to notice to which we ...
Page 31
... become more and more scatter- ed as the rays fall on the mirror further and further from the axis , all being on the side of q towards A. Thus , if the dotted lines represent the reflected rays , Fig . 22 . V Χ B 2 I E the rays before ...
... become more and more scatter- ed as the rays fall on the mirror further and further from the axis , all being on the side of q towards A. Thus , if the dotted lines represent the reflected rays , Fig . 22 . V Χ B 2 I E the rays before ...
Page 39
... becomes nearly a circle , which is called the " Circle of least confusion . ” Thus it can now be seen that if a screen were placed at 1 , an image of an arrow ( fig . 25 , 1 ) placed at Q would be seen thus ( fig . 25 , 2 ) : while , if ...
... becomes nearly a circle , which is called the " Circle of least confusion . ” Thus it can now be seen that if a screen were placed at 1 , an image of an arrow ( fig . 25 , 1 ) placed at Q would be seen thus ( fig . 25 , 2 ) : while , if ...
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Common terms and phrases
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