Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, EtcMacmillan, 1870 - 130 sider |
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Side 13
... seen by an eye looking into N , N ,. Thus the rays which reach the eye come as if from 9 ,, i.e. the eye E sees an image 9 , of Q. And similarly for all the other points of Q , Q2 ' The shaded part represents the rays traced from Q , to ...
... seen by an eye looking into N , N ,. Thus the rays which reach the eye come as if from 9 ,, i.e. the eye E sees an image 9 , of Q. And similarly for all the other points of Q , Q2 ' The shaded part represents the rays traced from Q , to ...
Side 17
... seen by an eye out of the plane , the mirrors would have to be prolonged , so that rays , after striking them , might meet the eye . So that a virtual image may be described as an image that does not exist until there is an eye to ...
... seen by an eye out of the plane , the mirrors would have to be prolonged , so that rays , after striking them , might meet the eye . So that a virtual image may be described as an image that does not exist until there is an eye to ...
Side 19
... seen that in all such cases we shall have an image of any object just as far behind the mirror as the object itself is in front ; and the only rule which we used to find this was that after a ray of light struck the mirror it came off ...
... seen that in all such cases we shall have an image of any object just as far behind the mirror as the object itself is in front ; and the only rule which we used to find this was that after a ray of light struck the mirror it came off ...
Side 21
... seen that all the reflected rays will go off in a beam parallel to the axis , the breadth of the beam of course depending on the size of the parabola . Upon this principle the construction of one kind of lighthouse is based . A mirror ...
... seen that all the reflected rays will go off in a beam parallel to the axis , the breadth of the beam of course depending on the size of the parabola . Upon this principle the construction of one kind of lighthouse is based . A mirror ...
Side 24
... seen do not pass accurately through a point , as they appeared to do in plane reflexion . 18 . rays If the student will apply precisely the same reason- ing to the case of a convex mirror , he will see that precisely the same results ...
... seen do not pass accurately through a point , as they appeared to do in plane reflexion . 18 . rays If the student will apply precisely the same reason- ing to the case of a convex mirror , he will see that precisely the same results ...
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Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc Osmund Airy Uten tilgangsbegrensning - 1870 |
Geometrical Optics: Adapted to the Use of the Higher Classes in Schools, Etc Osmund Airy Uten tilgangsbegrensning - 1870 |
Vanlige uttrykk og setninger
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