317L_ex1_F07 - 4-.—-.-- Extra-ex _L_. 4-: -..-.- -. $1:...

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Unformatted text preview: 4-.—-.-- Extra-ex _L_. 4-: -..-.- -. $1: twill-(fl (1‘1. .: ‘T‘fi'v --\.-n-..-.-1 wan-wu- u. - . . a .. .Lu .- -n.. nub...-........--.-...-.--. .-...n.-,...r.-._.. .:-pI-ru. a...“ -n .H . 1. An ohjeet is 0.5 tn in front of s. diverging lens 1with focal length f = —2 In. 'Where is ‘ .2 the image? i _ [3. +0.40 III: on the opposite side as the ehjeei. T; l‘ 41 40 m1 on the same side as the object ,| J— J— ! e +0.0? In1 on the opposite side as the ehjeet T : 4 - 13 2 ' . l' I .i _ [d] —0.Ei? m. on the same side as the object I I g {ell —1.50 In1 on the same side H5 the object r E - 2 i E— -E i .._... . : * F": i l ‘ ' "if- . l 2. You have purelissed 3. little trinket st 3. souvenir shop eonsieiingI of a eleer plat-stir: hell in whieh is embedded at penny. The plastic has an index of retreeiium of nl :: 1.0. The hall has a radius of 3.0 ern. As you peer into the hell1 the penny appears to he ul- u i depth of 5.0 ern into the hell. At what depth is it really? You may assume you are in air 1with n2 = 1.0. (Hint: the feet that the penny appears inside the hell means that you see u virtual! image. PLEASE PA 1" ATTENTION TU SIGNS") -m- 2.0 em 1| + [g = flit-HI I I _ {h} 3.0e1n P L r he a. . l d] 5.0ern -F 4 “g. F ,3 l - I [e] 0.0 em 1e...e.2+i:=a.4 i s “imminent. 3 “‘"t. e- 3. An ohjeet is plseed 1.0 em further away from 3. lens th eleris’s focal point. The lens I produces an image of iiiegniiieetion +0.2 of the original object. What type of image is . it? i "t get-+0.1 = [hj reel. ereet, smaller than the ohjeet JP I' __ {e virtue]. inverted1 smaller than the object J i [d] ' eel. ereet-_. errieller than the ehjeet ltd!" ll)“ {e} virtual. ereet-. larger then the ohjeet [a] reel. inverted. larger then the ohjeet =3 560 mm =3 upe' t“ 0.? =9) Smelter . . -.. "'\If'I-lfi ra-rw.——- ----i-.1- .flh.'L'.I§-_.";_-1...I-1- ..- .-1_-. WflIrHHH—IJ.WL.- .ai. .. ci 1- - -_-_._‘......-......r m- w I c.._ _..-,|.-u._.: Idem—"l". . I E F .‘i 5‘“ ....__- ._ .. n .. -.~ -. -. -' ..~ . - - -.-.-_.-. -..|.- VJ. .-._ an"... -..- Ase-u.- - "’4: M III-c .- . “Hi - _ . .. ...- India-Hm. I... .h. _ rains.me- HlidWi-ly between the focal pflint I 4. In the problem above, what is the focal length of the lens? 1 {ii—3”“ puns?- ‘-'— => its—i“? .X'#®133}cm j J- .L i9 ‘2) 1p ‘1 a I flit-i {US} Cm T3"? I I T) _ '4‘? __ {di 4cm 1 . JP :5: m IF Up I; - is] ...{li’-’1:]I cm F 'i- P .. i: H, { _ ) ~i _ _L i = —3_J 5. A man stands with his nose 8 cm from E1- concnve shaving mirror of radius 32 cm. The distance from the mirror to the image of his nose is: .r m da mi; {a} 8 cm ~17 ‘ 4- 325m ’ [s] 12 cm .{3 s V1 : m a...“ "r .--'”" .- cm {d} 24 cm :- gf‘m [e}32cm #L J, J _-i.=--I--_-L :_! _,_L - "FL 1-; A L ‘ ,9 i I 1' rt. 3- ' ss- E5. A point source is to he uselrzi~ along with a. concave mirror: to produce u beam of purulio] light. The source should be placed: {at}. as close to the mirror as possible {b} at the center of curvature (c) midway between the center of curvature and the focal point x’flirrimway between thc center of curvature and the mirror If! T. its light gees [rem une medium to another, it is bent away from the nerrnul. 'l'hen We. can say: e speed of the light has increased {b} dispersion must occur - remain-Ma..- m-«mv'ifl {e} the second medium has a. higher index of refrsetien than the first {d} [10 change in light speed has eeeured {e} refrsetien hss net eeeurred beeuuse refraction Inesns s. bending toward the nurmsl C. flififli ’Ui‘:£ “it” H i “1 U1 :- v“, E. A eemers. with a converging lens of fecal length SI] cm is fflCLLQE-‘H‘l en s. 1.5 in tall persen standing 12 m sway be take a pieture (term en imsge at the film}. The height ul [he image is approximately". slur-n. --. .I - K% I: . L“ x.“ '2 ,5 s E -—J [‘1 g 4—, P R I- 'I 1..- I! N 'L': 'U' h J" f I -.; E - : h : m Id 2 _......... a; 3; P er. m '20:: Larr/ 10 a I' i Q. A eenvex lens 1with n = 1.5 has n flat 3 I see and a. surfsee whese radius is 50 em. 'Whut is the feesl length? is} —5U ern {b} 50' e111 "Haiti-Elke.“ .- _..-'-.- Amp-mankirfiflmumanfir v3» MUM?“ - -' ‘ ' - ‘- - - -- -- '.-r '-.- :‘..---.- 1 .. "v . - -- . -.—-\.1:'|.-£---. ' _. ' ..I/ . . .'.' _ ' . ' . - - I . . @DU em f -? {I} —1fl e111 # Er;- l} ,_ -_|. {e} EDIE] em a” ‘5?) {f} —2Ufl em ' _. ' __ _'_- .. ' it}. An object site It! ern in front of a convex mirror 1:vith radius of curvature whose triag- nitude 313 cm. What is its rnagnifleetion m‘? Careful of signs.r J..§¢.Luhanp.mmlm*-;.~7J—¥?e [d] +5 1! t _1-__ t _1 . e] at r J? r .I F" ‘ . 1 F 1 II _u/: +047 h“: “" ' '- 7 if} “M— l r = —~ 6 . . '3 11. An object is 20 em to the left of a lens of foeel length +10 em. A. second lens1 of focal length +115 ern, is 3|] em to the right of the first lens. The dlfitt-MIL‘C between the original g; object and the final image is: 3.; {H . -n H j-E ._ . 'r 28 em __W__'_'_‘r- i L. . ' W ...;._ I; . [b] 50 e111 P E A , g 2 1--._; .n t t ,— " -. O — {.3 {SI—IUD ern 4:51,} It ‘ a 1; 'll a r W ‘ ' = er - E._._---{fl'ffiififinit}' 'P. = ‘90 {J 1 20 m #1 + _l : _'. I; l ' ..l. .4. -L 1'. ‘L 1" l? :1 1:. 1. f, i .L '¢.J_o_L-a r fi- _1_ _.L if: '1: ‘ In: no ‘EE'FE II" no It) 1 1 ' ~ 12. In 'a Young‘s rlonhlerslit experiment1 the eonter of as bright fringe oeeurs wherever waves 1* t ‘4' g . . from the slits differ in the distance they have to travel by _& mumlfllc 0f: 2 {j P a .3 . if 3*? a a fourth of a wavelength l " .,._ F- l: } w vale lgth If {2 r 5a .. ,_ . a a I ' i it if W .- hug _ avelength ? ] three-fourths of a wavelength . {ej non of the above. {’2 m I “HQ "5; g "r e'. D: .1 g; 52* *5 P 2: L1 "-"'-:. WEE” ' egg-ur- - - g 3 .5 1.3 it 2.3, ‘1‘- il 13. 1Ir’lr’hen light meets a reflecting surface. the direction taken by the reflected light is deter— ? mined by: iiti ' _ j '3 {a I 3; the wavelength of the light l' 1 - .1 the angle of incidence '3 2"; If? {c} heth the index of the medium and the angle of incidence {d} only.r the intensityr ef the wave i {e} both the material of the reflecting surface and the 1tra‘t'elength t $.53 : 3.: I1 14. It thin film suspended in air is n.4flfl nm thick and is illuminated with White light. The index of retract-ten ef the film is 1.5!}. At what wavelength will the visible light that is reflected from the two surfaces of the film undergo i'nllg.r constructive interference? , (a) {1.24flnm 25"“ : (“4327\A all-*5 3 h n 400 - il‘i, ;_ It } ' “In ’3 h r I tannin A = 2‘91: .-. 2a” (It?) W‘fl: ‘azi __ {d} ntnn inn W + 1 H + g {e} 1.20:) nm L2 1 i l f. '- hnhfi: 1:. 2" 5’ $44M“ H" 0» ~: = '-‘ m 4 l g.” g '1 (M: e W = l m: 2 3 z j z )I i E 15. In an experiment te meaeure the wavelength ef light using a deuble slit! it is found that -._;~, the fringes are tee close tegether to count them. Te spread out the fringe pattern, nne _ eeuld: '1 1:” . tneclitee ratien 0/ i é? .. 1 ” “3 SM * “‘r Midiflg;3, , double the slit separation n. 1v'—‘lhw-I.-\.--Iu ..n. -\..n.-.n. . 1. _hmw-m want..- a..- rim.- new {c} double the width of each slit ; b u {d} halve the width of each slit a)“ “l 5 "E" 'J 5 {r {e} Ilene nf these . Ira-U. imam-tram.” «mun-qua- '-+.-- "It? £0 E .- “D F E ,L. 9“ - : . .. ...... "Fun"...- “seam—a. _- .-.- u. t :MWJMH -.. ' ... fi'mfi ' ' :1 g} 3% tit -' : '2 . I! _ J Bil . 1 arflmflu-“l-nfi-I-HFII1‘_I+ ....._;: ! lfi. 1foe are one of the most famous Impressionist painters in the world. and your tame '_-‘ derives from your “pointilistie” paintings in which you use your brush to make small (lots on the canvas of different colors. When viewed from a distance. no one sees these little dots. and onlyr sees the broad image of a portrait or landscape. because diffraction causes the dots to blur together. 1foo. being clever. know that the typical human eye pupil is about 1.22 mm = 1.22XIEI—3 111 in diameter. and most people looking at a painting in a museum don't stand an}.r eloser than it] n1 from the painting. If the typical light from your painting is 31111 11m. what’s the largest distance that you can make the points I dots on your painting so they will hlur together to the average viewer? -‘:-"-'3 Arnie-unis. wfidp -Amfibfiahéfltfia-e .'- \-.- Human—.4... .- '- f. {Remember the usual “small angle approximation” of tantl 2 H}. I. Hun . w i J: I. K GI Ilene} ,4 1 eniesm I -~--- T I {c} It") inn ‘1: _______ “#MH {d} {1.3 mm 13, . [El 5 min 9 : fr t 9:55am : 11331.3 :r (a ii '0 r71 ___.4..-22 Mag“... /4 ‘ 3 m . 1 2:1. 9.4—; 4 44.4 firm—Um» '. 1?. The diagrams helo'ar depict four different- charge distributions. The charges are all Lhe __ same distance from the origin. Rank the situations according to the magnitude of the -:._i electric field at the origin. least to greatest- if _ {11]. 1.3.3.4 --"' fl}. 3. 3. 1 - ' '. '1: 3? 2: 4 5e 5e 5e [.1 5e 3' . c. . -_ If; {41} 1. 2. then 3 and 4 tie 24. 4M 3.. 3? Eq Jq 2Q : 2g I {C} *1, 3, 1. 2 Tfiq 1|]. 5|? ' 1' 1 ' 2 3 4 ._ I I} 3;; . If 2?? ' '1: 18. In the previous problem. rank the four situations acoording to the magnitude of the II :1“: electrie potential. least to greatest - w {4) 1.3.3.4 {14 4. 3. 2. 1 3, 3. 4 ‘ 11) 1. 3, then 3 and 4 1.14. {4}. 4. 3. 1. 3 I 19. An electron traveling due north enters a region where the eleetrie field is uniform {eon— stent) and points north. The electron * .- Lafijamameemsgws -—'N, : {a} s =ds up E 5 down e] veers east. 1 J, 3* LI {cl} veers west. IE -— - {e} eontinues with the same speed in the same direction. Her A _~.‘ It: I'— ‘g E F‘- ‘b hMuE-E .211]. Consider an equilaterisl triangle whose sides have length a. Point charges of magnitude q are located at two of the vertiees of the triangle. 'What is the value of the electrie potential at the location of the third vertex? 9 .1” L V :% TTEQL‘L} ._ -._ .g' / . ': EQKIITTEQE} \ " . [d] qflflwefla} \ {e} none of these ...
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This note was uploaded on 04/30/2008 for the course PHY 317L taught by Professor Ritchie/lang during the Fall '08 term at University of Texas at Austin.

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317L_ex1_F07 - 4-.—-.-- Extra-ex _L_. 4-: -..-.- -. $1:...

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