# 423b - I The line intersecting the center of a spherical...

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Unformatted text preview: I The line intersecting the center of a spherical mirror and its center of curvature, C, is the principol oxis. Light travelling parallel to the principal axis, after striking a concave mirror, converges at the focus, F, or appears to diverge from the {negative} focus in the case of a convex mirror. I To construct a ray diagram with a spherical mirror, ﬁrst draw a ray from the object point parallel to the principal axis. This ray reﬂects back through the focus [or appears to originate from the focus with a convex mirror}. The ray from the object point which travels through the focus before stiiiting the mirror {or toward the focus with a convex mirror} reflects parallel to the principal axis. The ray that travels through the center of curvature reflects hack on itself. The image point is where these rays intersect [real image} or where they appear to originate {virtual image}. I If the object distance exceeds the focal length, a concave mirror produces a real, inverted image. The image is diminished if the object is further than the center of curvature and enlarged if the object is between the center of curvav ture and the focus. For an object placed nearer to the mirror than the focus, the image produced is a enlarged, erect, and virtual. The image produced by a single convex mirror is always diminished, erect and virtual {DEF}. THE MHDMABU‘H’E IS NDT'I'l-IE‘I'II'IIWTDA FOUT-I'IDLD HERE. STUDY THE IiIU-GES'EFTHE EWUE MRRﬂR. MEWE'I'I'IE ﬂﬂJECT IN THE MIN-HID” FRDM VERY FAR MTMEJWCH WI-EAT I'IAF'PEHS WITH THE IMAGE. 'i'i'l'IEH 'i'lJU I'lh'il'E TI'IAT Dill-WM, THE EKF'LAMATIEHS WILL MAKE SENSE. E 2605 .J WHEEL ...
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