1) What is the reflected angle 3 measured WITH RESPECT TO THE BOUNDRY as shown? a) 0 b) 11 c) 16 d) 50 e) 42

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1 Light in ne medium (n =.) enunters a bundary t a send medium (with n =. 8) where part f the light is transmitted int the send media and part is refleted bak int the first media. The inident angle is = 6 measured WITH RESPECT TO THE BOUNDRY (as shwn in the piture). ) What is the refleted angle 3 measured WITH RESPECT TO THE BOUNDRY as shwn? a) 0 b) ) 6 d) 50 e) 4 ) What is the refrated angle measured WITH RESPECT TO THE BOUNDRY as shwn? a) 0 b) ) 6 d) 50 e) 4 3) Hw des the speed f light in the tw materials mpare? a) the speed is greater in medium b) the speed is greater in medium ) the speed is the same 4) What is the ritial angle between the tw media? a) 0 b) ) 6 d) 50 e) 4

2 An bjet is plaed 0.0 m in frnt f a nae mirrr. The mirrr prdues an inerted magnified image that is.5 times bigger than the bjet. 5) Where is the image lated? a) 0 m b) 4 m ) 7.4 m d) 0 m e) 5 m 6) Desribe the image: a) real b) irtual ) it uld be either 7) If the bjet is nw med ery far frm the mirrr, where will the new image be frmed? a) 0 m b) 4 m ) 7.4 m d) 0 m e) 5 m 8) Desribe the new image: a) real and inerted b) irtual and inerted ) real and upright d) irtual and upright e) nne f the abe

3 An bjet is 0 m in frnt f nerging lens that has a fal length f 6 m. 9) Where is the image f the bjet thrugh ONLY THE FIRST LENS lated? a) 6.59 m b) 7. m ) 8.57 m d) 9.33 m e) 0.3 m 0) Lens is lated 8 m t the right f lens. If the final imaged is fused n a sreen m t the right f lens, what is the fal length f lens? a) 6.59 m b) 7. m ) 8.57 m d) 9.33 m e) 0.3 m ) Desribe the final image: a) real and inerted b) irtual and inerted ) real and upright d) irtual and upright e) nne f the abe ) Is it pssible t make the final image shw up n the sreen if a single dierging lens was used? a) Yes. b) N. ) It depends n the fal length f the dierging lens.

4 Light with waelengths frm 400 nm t 700 nm is inled in thin film interferene with il n water. 3) At what minimum nn-zer thikness will there be nstrutie interferene fr blue light? (400nm) a) 7.4 nm b) 4.9 nm ) 50 nm d) 350 nm e) 500 nm 4) At what minimum nn-zer thikness will there be destrutie interferene fr red light? (700nm) a) 7.4 nm b) 4.9 nm ) 50 nm d) 350 nm e) 500 nm 5) If the il was n glass (n =.5) instead f water, hw wuld the tw preius answers hange? a) Bth wuld inrease. b) Bth wuld derease. ) Bth wuld remain the same. d) #3 wuld inrease, #4 wuld derease e) #3 wuld derease, #4 wuld inrease

5 Light with waelength 58 nm ges thrugh a single slit f width 0.06 mm and displays a diffratin pattern n a sreen. m away. 6) What is the width f the entral bright fringe? a) 0.6 m b) 0.3 m ) 0.48 m d) 0.64 m e) 0.80 m 7) What is the angle t the 3 rd dark fringe? a) 0 b) ) 4 d) 6 e) 8 8) If the apparatus was plaed under water, what wuld happen t the pattern? a) the fringes wuld spread ut b) the fringes wuld get lser tgether ) nthing 9) If the slit width was inreased, what wuld happen t the pattern? a) the fringes wuld spread ut b) the fringes wuld get lser tgether ) nthing

6 Tw unrelated radiatiity prblems are asked belw ) Uranium 9U deays int Thrium 90 Th ia what type f deay? a) b) + ) - d) e) ) The half life f Carbn-4 is arund 6000 years ld. Hw ld is a fssil with nly /8 f the Carbn- 4 it had when it died? a) 750 years ld b) 6,000 years ld ),000 years ld d) 8,000 years ld e) 48,000 years ld It is knwn that an eletrn in an atm is in the 3p rbital. ) What are the pssibilities fr the quantum number m l? a) -3, -, -, 0, +, +, r +3 b) -, 0, r + ) 0,,, r 3 d) 0,, r e) 0 r 3) What is the priniple quantum number n? a) 4 b) 3 ) d) e) 0

7 In a phteletri effet experiment, isible light (400nm t 750nm) shines n a metal with a wrk funtin f.8ev. 4) What is the maximum KE f ejeted eletrns? a) 0.30 ev b).30 ev ).30 ev d) 3.30 ev e) 4.30 ev 5) What is the utff frequeny fr this metal? a) 4.77x0 4 Hz b) 5.77x0 4 Hz ) 6.77x0 4 Hz d) 7.77x0 4 Hz e) 8.77x0 4 Hz 6) Whih f the fllwing metals wrk funtins wuld emit n eletrns when isible light shines n it? a) 0 ev b).0 ev ).0 ev d) 3.0 ev e) 4.0 ev An eletrn in an exited hydrgen atm makes tw transitins. First the eletrn drps frm the n=5 t the n= state, then the eletrn drps frm the n= t the n= state. 7) Cmpare the energy and waelength f the phtn emitted in eah transitin. a) in the st transitin the energy f the phtn and the waelength f the phtn are bth greater b) in the st transitin the energy f the phtn is greater and the waelength f the phtn is less ) in the st transitin the energy f the phtn is less and the waelength f the phtn is greater d) in the st transitin the energy f the phtn and the waelength f the phtn are bth less e) nne f the abe 8) Calulate the frequeny f the phtn emitted in the first transitin. a).9x0 4 Hz b) 3.9x0 4 Hz ) 4.9x0 4 Hz d) 5.9x0 4 Hz e) 6.9x0 4 Hz 9) Calulate the mmentum f the phtn emitted in the send transitin. a).44x0-7 kg-m/s b).44x0-7 kg-m/s ) 3.44x0-7 kg-m/s d) 4.44x0-7 kg-m/s e) 5.44x0-7 kg-m/s

8 Three spae ships are seen flying past yur lassrm n a spae statin. When ming, Ship is measured t be nly 65% f its length mpared t when it is at rest at the spae statin. Ship is ming away frm the spae statin at 0.5 and Ship 3 is ming tward the spae statin (in the ppsite diretin as Ship ) at ) Hw fast is Ship ming relatie t the spae statin? a) 0 b) 0.34 ) 0.59 d) 0.76 e).00 3) After 3 hurs pass n yur wath, hw muh time d yu measure t hae passed n Ship s lks? a).50 hurs b).60 hurs ) 3.00 hurs d) 3.50 hurs e) 6.00 hurs 3) Hw fast des Ship measure Ship 3 t be ming? a) 0.40 b) 0.7 ) 0.97 d).00 e).40 33) Yu send a radi signal (at the speed f light) t Ship 3. Hw fast des Ship 3 measure it apprahing? a) 0. b) 0.9 ).0

9 F ma kqq U r A C d C p Online Physis Frmulas C C kq q F r U V q Q V C F E q kq V r U C QV C s C R s R R kq E r V E d Q I t R L RC R V IR P IV Q Q e A t RC I Q Q e F qbsin F ILB sin B r B ni m r B BAs emf BL qb emf N t Z R B X L X C P V rms I rms s I I s LI U s s V p N p tan U X L R X C R p R t V N V I Z rms rms X X L fl fc f f LC E B E B 9 k Nm / C C / m N q 9 e.600 C / 8 30 m / s Tm A

10 d d Online Physis Frmulas i f n n sin n sin m h d i i f R i r h d sin n n tan P d sin m d sin m W sin m f min. t m ' t m' ' D n h h hf KEmax W ' s p E hf m B n n E 3.6eV n 4 p m E n py h 4 Et h 4 t t L L p m E m AB AC CB AC CB 8 30 m / s 34 h J s m 3 e 9.0 kg 7 m p.670 kg

11 ON-LINE PHYSICS EXAM # MR. POTTER Name: Date: ) Bubble in the ID number setin f the santrn frm with FIVE ZEROS and then the LAST FIVE DIGITS f yur SOCIAL SECURITY NUMBER. (Fr example ) ) This Exam is 90 min lng - 33 multiple-hie questins. Chse the ne BEST answer fr eah questin. Yu are nt penalized fr guessing. Wath yur time! (Answer all questins.) 3) Yu may use nly a penil and alulatr. (Frmula sheet is prided.) 4) Use the test as srath paper (r the paper prided by the testing enter). Hand EVERYTHING bak in r yu will reeie a 0 n the exam! 5) Sring: all 5 answer hie questins are 6 pts. eah, all 3 answer hie questins are 3 pts. eah, all answer hie questins are pts. eah. Ttal pssible pints = 80 pts. 6) This is test frm. Be sure t FILL THIS IN n yur santrn frm. All frms are equialent tests (nly numbers hae been hanged.) 7) Als, write yur name, the lass, the date, and my name n the santrn frm. Gd Luk!

12 DID YOU BUBBLE IN AN ID NUMBER AND TEST FORM ON THE SCANTRON? (see frnt page fr instrutins)