# s36 - P36.4 A graphical construction produces 5 images,...

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P36.4 A graphical construction produces 5 images, with images and directly into the mirrors from the object O , 1 I 2 I and () 34 ,, OII and 215 III forming the vertices of equilateral triangles. FIG. P36.4 * P36.13 The ball is a convex mirror with and 4.25 cm R =− 2.125 cm 2 R f == . We have 3 4 q M p 3 4 qp 11 1 p qf += 11 1 p p 1 33 2 . 125 cm pp −= 32 . p = 0.708 cm p = in front of the sphere. The image is upright, virtual, and diminished. O IF C FIG. P36.13 *P36.14 (a) 4 q M p =− =− 4 = 0.60 m4 = 0.2 m p = 0.8 m q = 111 1 1 0.2 m0 . 8 m fpq =+= + 160 mm f = (b) 1 2 q M p =+ 2 p q 0.20 m2 qp q q = −+= −− 66.7 q 133 p = 11 2 1 1 0.133 . 066 7 m pqR += = + 267 R

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P36.26 p =∞ and 2 qR =+ 22 1.00 nn pq R += 0 2 RR so 2 2.00 n = FIG. P36.26 P36.27 For a plane surface, 12 2 nn nn R 1 becomes 2 1 np q n =− . Thus, the magnitudes of the rate of change in the image and object positions are related by 2 1 dq dp n dt n = . If the fish swims toward the wall with a speed of 2.00 cm s , the speed of the image is given by () image 1.50 cm s 1.33 v == = . P36.30 For a converging lens, f is positive. We use 11 1 p qf . (a) 111 1 1 1 20.0 cm 40.0 cm qfp =−= = q = 40.0 q M p = The image is real, inverted , and located 40.0 cm past the lens. (b) 1 1 0 = infinity q = No image is formed. The rays emerging from the lens are parallel to each other.
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## This note was uploaded on 08/31/2010 for the course PHYSICS 7E taught by Professor Staff during the Fall '08 term at UC Irvine.

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s36 - P36.4 A graphical construction produces 5 images,...

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