Optics Study Guide - Chapter 22 & '23 Chapter 22 problems: 1. A beam of light in air is incident at an angle of 37° on the surface of a block of transparent \ materiaL The angle of refraction is found to be 25°. What is the speed of light in the Y\ ..••. \ (31" aterial? (2.11xli:1 m/s) 1"), 5~()Q, -e, (\2,. s\'0Q, t'\:;:.. ~ _-------r ~ lIJ~\VI'3"t··-r).l._s'nJ..S... , _ 3 ..•. tD <r . _ r..) , i..lDCCrnf<l l (\"., I I'D 1.l1'l}-\D - 'V \j - oJ. " \ P ~•.~ /1,).; D 1.. . • '\ '2~ ---------' 2. The Sun iSiOo~bove the horizon. If you are swimmingbeneath the surface of a pool of , w~~er, at what angle above !he horizon does the ~u~ppear to be? 4, °, 'ao"'''.-: l'\,":>''''91'''.n....::,\'l'\9z. ,.,'")QO-Li1.11 LJ,f) ':7;\ IU" (\') 5,'('\ 'to ~l\'~)) s,:t9<. ~ . I (j.. e2 - LJ7.71 .4~ ~ , . e\ 3. Find the speed of light in (a) flint, n_=.-1.66.;'-<.b)~er,n = .33; and (c) zircon, n = 1.923. (a. 1.81~1d m/s b. 2.26;1d m/s C; .1.56xld m/s) f5 ,\ ._ .l'f. 109' f\) \[:;. ~.O 'f. fO B) '\f z; _ ,\) ~(O_ C) \j - i ,q J3 ',.\.?b \.33 . ' ".,. t.'l<l '1-(0 ",I~ 0.::~. J6"- (oj.+:j [v~\. 5(00 I-I0 13 '(t11 s~ 4. A beam of light strikes the surface of mineral oil at an angle of 23.1° with respect to the normal to the surface. If the light travels with a speed of 2.17 x 10 8 m/s through the oil, ; ~hat is the angle of refraction? (16.17) fI; S~ nQ;::. n ("' 5\'<\G «: (~, e n f'~ (\ -=- .~ L\J 5',(')').'3.1 t>~(L 3f;;9...5) 5\\1 b'1"' ~--~~-- ~ t1"'~ ";.~ Y, ~ \..3<02.S '5~() 9 -:."J..8'~7C. "t a.I(-l-/D .'1b G (' =- llo ~ 5" 5. Calculate the critical angle for the following materia s w en surroun e yair: (a) zircon, . On-\::\ CJ:~ 6-'('IuLL I') = 1.923; (b) fluorite, n = 1.434; (c) i~, n = 1.309. (a. 31.,3"'" b. 44.2'/' c 49.IJ1) ~ "'10 S e A) rI,<)IC"Qi".:.Y\a:S'v"Gr BJlwL4'3L(S'\1\e::~,)s\(\qD Lj \~'3' q~hnQ;-=(}JSh\ Q.".r \ QO" I .. 90 g .-!.- \ \-,e~:;.\ (1 .• 92.3)S',118;::. ~,(1 ~i(\ ;::I·~-\3'i S\{\G;'::\.30? ~--..;C) > ?" Si(\ Gi ';' ~3 &; -:.44 ~:l\ c / 't); : 9 - ::. 3 1 v 33 0 6. A beam of light traveling in air is incident on a transparent plastic material at an angle of incidence 0 ~The an~le of refrac:,ion is 35°, ~hat is the index of refraction of the ~0 plat.e? &:.'\).0" '(\, ':),,,G i -- (\<.. ~\flf)'l.. ~ .z, .cp'j .) 1'7 0.'-<" t\) ");{\ SO" -.:: '(\2- 'S-,,,,~5 -o '-.~ ~;-9\t.-?~L- r.fl ~ L 3~ \ I~~ \ 7. The angle of incidence of a light rayon a mirrored surface is 35°. That is the angle between the incident and reflected rays? c ~ 8;~G, ,~~~ ( ~~ / ~ '2- 5" . 8(' :1~\ <, -> [