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# Optics - Convex Mirrors diverging Images are always smaller...

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Chapter 30 Reflection and Refraction Bqflecla! Law of Reflection @incidence = @reflecrion Specular vs. Diffuse Reflection (eg. Specular- mirror, Diffuse- paper) Refraction Index of refractionn = c/v Snell's Law nr sin @r = nz sin 02 Polarizing Angle: tan @, = nz I nt Critical Angle: sin @. = tz ln1 (use with Total Internal Reflection) Remember: The velocity of light slows as a medium's refractive index increases, but frequency does not change. In avacuum, thewavespeedv = c= 3 x 108m/s and c= f )" In another medium, v = f )" Chapter 31 Images and Optical Instruments Magnification M =hi.us./hobject = -Simase/souj.", where sis the distancefromthemirror/lens Focal length equation (llD = (1 / souj".,) + (1 / s1.,*.) R"member: Real images are always inverted. Virtual images are alwal,s upright. Mirrors Radius of Curvature C=2f Ccncave Nlirrors- converging Image gets larger as object moves nearer the mirror. Objects at distances closer than the focal length produce virtual

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Unformatted text preview: Convex Mirrors- diverging Images are always smaller than object and virtual. Lenses Lensmaker's Formula (1/f ) = (r-1) ( URr - 1/R2 ) Convex Lenses- converging Image gets larger as object moves nearer the mirror. Objects at distances closer than the focal length produce virtual images. Concave Lenses- diverging Images are always smaller than object and virtual. Applications Compound microscope Magnification: M = - ( L * 25 cm)i ( f" f.) Refracting telescope Angular magnification: m = fo I f" {D E 'Gr E(r_ .EE _(f(J 0s o .b' E x CI o U 6 l* {} fE (J G L} {u p o = a u {tl s o % () V1 a-q) * ; g -cl -c E Hl € (,l --r n E * ll t\$ r! QJe *L J '-l * lt +-l E .g it-a,! EE ,{E Uf,-v Eo} {a t0) o* qJo o I il + =*l o Er ,rQ * o'a g o \$ at *6 i!tr L:J } 6s E\$ =E Eo o-rJo t 9kl c q #il E S=rl o E =ll o-,E .= ) gt {u {s E ; [[ 0-€_ GI gn tr P';1o E Hlr EE J-l '*-il *-l o E o {S ri] i"i ar: E GE u5-F C E'} td} (JO o I I I ! t...
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