Giancoli 5th Ed. Hwk 13 (Due 12/5/22) 10 point hwk Ch. 32 P. 3-5,11-15,19,21,34,35,39,41,55,56 MiscQ. 2-12 even Problems: 3. Use sum of interior angles of a triangle is 180 degrees. The requested angle is 13 degrees. 4. x = 0.78 m 5. deflection angle = 2*phi 11. d_o = 15 cm 12. Use d_i = -m*d_o, then use mirror equation to solve for f = (d_o d_i)/(d_o + d_i) = -9.6 m 13. a) f = r/2 = 12 cm b) mirror equation gives d_i = 17 cm. c) image is inverted since M will be negative 14. f=r/2=-2.1cm (convex mirror). Use mirror equation to find d_i = -1.94 cm. So the image is behind the surface of the ball, virtual, and upright 15. r=6.3 m 19. a) (Must draw picture showing 2-4 rays and an upright image with d_i = -6 cm.) b) Mirror equation gives d_i = -6 cm c) hi=h(M) = 1.3 mm 21. a) drawing (2 or more rays) shows that |m|<1 for a d_o > r. drawing (2 or more rays) shows that |m|>1 for d_o < r. b) mirror equation used to show that m = -r/(2d_o-r) so, If d_o>r, (2d_o-r)>r and |m|=r/(>r)<1 If d_o1 34. n=c/v = 1.31 35. a) ethyl alcohol: v = c/n = 2.21e+8 m/s b) Lucite: v=c/n = 2.00e+8 m/s c) Crown glass: v=c/n = 1.97e+8 m/s 39. Use Snell's law to find theta1=55 deg. Then angle of interest = 90-55 = 35 deg. 41. theta_1 = 2theta_2 = 71.8 deg. 55. n_liquid = 1.26 56. R>74.1 cm MiscQ. 2. e 4. a 6. c 8. c 10. c 12. a Please check Tot= 10 pts Prob. 14,15 (1pt each) MiscQ. 4,6 (0.5 pt each)