Cia22z Thdu kinh ld m6t kh6i chdt trong su6t dugc gi6i han bdi A.. chitit su6t tuyQt doi cta m6i trucmg riay ta.[r]
(1)op rru HK rr xAv Hec zor3-20r4 M6n : Vpt Ly Thdi gian : 45 phrit Ngdy thi :291412014 Me Ee :209 Ciu L: Vat AB d[t vu6ng g6c vdi tryc chinh mQt thAu kfnh hQi tU c6 ti€u cg 20 cm vd c6ch th6u kinh 60 cm se cho anh A'B' c6ch vdt AB A 80 cm 8.30 cm D.90 cm C.60 cm Cia2z Vat AB d{t vu6ng g6c v6i tryc chinh mQt th6u kinh hQi tg c6.ti6u cg f1:10cm vd c6ch th6u kinh mQt khoing d cho enh thAt A'B' Thay th6u kfnh hQi-tU bing th6u kinh ph6n kj' c6 cing tryc chinh ,c6 ti6u cU fz: -20cm thi cho anh A"B" Bi0t kho6ng c6ch gita A'B' vd A"B" lit27cm d bdns B.30cm A.20cm C.40cm D.50cm Ciu 3: MQt ngudi cfln thi c6 kho6ng nhin 16 tir 12,5cm d6n 50cm Khi tteo kinh c6 i10 tu -ldp ( kfnh dflt c6ch mft lcm ) MiAn nhin 16 tleo kinh cria ngudi ndy ld: A tu 13cm c16n 96,08cm B tt 14,3cm ddn 100cm D tir 13cm <16n 100cm C tri 15cm d6n 125cm Cflu 4: MQt vdng ddy tl6ng c6 tluong kinh d:30cm , ti6t diQn ddy s:0,5cm2 d{t vdo tu trudng dAu c6 c6m img tri E tao v6i m{t phdng vdng ddy mQt g6c 300 Ddng iliQn cim ring xu6t hign vdng ddy ld 24' DiQn trO suSt cria d6ng ld p:1,75.10-8Om TOc ttQ bii5n thi6n cim img tri qua vdng ddy ld A.200,8.10-4 1?s; 8.320,5.r0-4 1t/s; c tl6,i.t0-4 (T/s) D.240,4.t0-4 1t/s; Ciu 5: Tu trucrng d€u ld tu trudrng md c6c ducrng sric tir ld c6c ducrng A thdng song song B th?ng C song song D thlng song song vd c6ch d€u CAu 6: MOt 6ng ddy ti€tdiQn 10 cm2, chidu diLi2} cm vd c6 1000 vdng ddy HQ sO tg cim cria 6ng ddy (khdng 16i, dAt kh6ng kh! ld B 0,2n mH A.2nm}l C.0,2 mH D.2 mH A ,12:3,64 ,13:6,4A ch4ytrong padily d6nthing ddivudng g6c v6i m{t phdng hinh vE tqiba di6m A,B,C CAu 7: Ba ddng di6n 11:4,8 AB:6cm, AC:8cm, AH ld duong cao cta tan gifrc vuOng ABC vd c6 chi€u nhu hinh v€ CAm img tu tpi H c6 dQ lcrn le L 2.,/E-.t0" c z^.6.t0" r r r B +.6.t0 D 3.6.10r T I ^ th{t mu6n cho 6nh ngugc chi6u lcm hcrn vflt thi vflt Cffu 8: Qua th6u kinh hQi n€u vat dat c6ch th6u kinh mQt khoing d : L.2f <.d B d:2f c.0<d<f D f <d< 2f Trang phii lB -l/re,eA thi zOq (2) Ciu 9: Di€u ndo sau ddy khdng effing n6i v0 kinh hip? A c6 ti€u cg l6n B ld dpng cU quang hqc bO trg cho mht nC quan s5t c6c vQt nh6 C t4o u4ao 16n hcrn v{t D ld mQt thdu kinh hQi tU hoac hQ th6u kinh c6 d0 ts duong Ciu 10: Ph6t biOu ndo sau ttdy ld kh6ng dfng? A Ndng suStphan h ld g6c tr6ng nh6 nh6t qmi,, nhin ilopn AB md m6t cdn c6 th€ phAn biet dugc hai tli6m A, B B Di€u kien tIC m6t nhin rO mQt vQt AB chi cAn vQt AB ph6i nim khoing nhin rO cria m6t C di6m D rli€m Ei6m gAn nh6t tr6n tryc chinh cria mit md v4t d1ttqitl6 mit cdn nhin rO dugc vOt ld cgc cQn C6 Ei6m xa nh6t tr6n tryc chinh cria m6t md v{t dat tai d6 mhtcdn nhin ro dugc v4t ld clrc vi6n Cy Ciu 11: Vat +B e14t vu6ng g6c v6i tryc chinh vd tru6c m6t thSu kinh 40 cm cho mQt 6nh A'B' tru6c th6u kinh 2A cm Ddy ld A th6u kinh ph6n ki c6 tiOu cg F -40 cm B thgu kinh phdn kj'c6 ti€u cg F -30 cm C th6u kinh ph6n ki c6 ti€u cg F -20 cm D th6u kfnh hQi tq c6 ti€u cg F 40 cm Ciu 12 MQt khung dAy hinh ru6ng cAnh 10 cm nim todn dQ mQt tir trudrng dAu vd vudng g6c v6i 9a9 ducrng cim ring Trong thdi gian 1/5 s, cim img tir cria til trudng gi6m til 1,2 T vC 0,2T Sudt diQn if$ng cim ring cria khung ddy thdi gian tt6 c6 d0 lorr lA B 50 C 60 D.24 mY A.240 mY Ciu 13: Tr€n vdnh kinh ltip c6 ghi 4x D0 tg cria kinh ndy ld B 12 C 0,16 D 16 dp A.6,25 Ciu 14: MQt ngudi c6 tli6m cpc vi6n cSch m6t 50 cm, dii5m cuc cfln chchmhtlOcm DO nhin vflt xa vd cilng md khdng ph6i diAu ti6t thi ngudi ndy phii deo kinh ( kinh dat s6t mat; B phdn ki c6 t10 tU -2dp A ph6n kj' c6 d0 tU 0,02 D phdn ki c6 ti6u cr,r F -10 cm C hQi Q c6 ti€u cg f= 50 Cflu L5: Ddng diQn cAm img m4ch kin c6 chi6u A cho tir trudng c6m img lu6n ngugc chi€u v6i til trudng ngodi B cho tri trudmg c6m ring lu6n cirng chi6u vdi tir trudrng ngodi C cho tir trubng c6m img c6 chi€u ch6ng lpi sg bii5n thi€n tir th6ng ban dAu qua m4ch D hodn todn ngSu nhi€n Ciu 16: MQt 6ng d6y ddi 50cm c6 1000 vdng ddy mang mQt ddng tliQn ld 5A EO lon c6m img tu ldng 6ng ld B 4n C.2n D 0o8zu rnT A 8n Cffu 17: NhQn clinh ndo sau ddy khhng rtfing v6 cim img ttr sinh boi ddng diQn chay ddy mV dp dp mV dp dp cm mT mT dan ? A phU thuQc d0 16n ddng C.phu thuQc hinh d4ng ddy diQn ddn mT B phr,r thuQc m6i trudng xung quanh D.phq thuQc bin ch6t ddy ddn Ciu L8: Cho chi6t su6t cria nudc bing 413, oha benzen bing 1,5, cta thriy tinh flin ld 1,8 Khhng th| xhy hiQn tugng phin x4 todn phAn chi6u 6nh s6ng tu benzen benzen A tu nu6c vdo C tir thriy tinh flin vdo B tu benzen vdo chdn kh6ng D tir thty tinh flin vdo nu6c Trang 28 - MedC thi 209 (3) Cffu 19: Di0u ndo sau ddy khQng drtng n6i vC tflt cQn thi? A Phai deo kinh phdn ki d0 sr?a tflt B Di0m cpc cQn *a^hthon so v6i mft kh6ng c6 tQt C khoing c6ch tir mit tOi diOm cuc viSn ld htu h4n D Khi khdng di6u tii5t thi chr)m s6ng t6i song song se hQi tg tru6c v6ng mpc CAu 20: Nu6c c6 chi6t suht 413, thriy tinh flin c6 chi€t su6t 1,8 Chi6u tia 6nh sSng dcrn s6c tu thriy tinh flin nu6c , g6c gi6i hpn ph6n x4 todn phAn ld B D 450 40,50 A.520 c.47,80 Cda2lz Hinh vE ndo sau d6y x6c ttinh ttring chiAu ddng ttiQn c6m tmg cho nam chdm roi A thdng dimg xudng tdm vong ddy dflt tr€n bdn: ,3 l* YV l* YV .-+ ' \ -*4 t c {? H H cu , f -.' \ -t4 cu dr* I [.o:0 Cia22z Thdu kinh ld m6t kh6i chdt su6t dugc gi6i han bdi A hai m[t pJring B hai m4t cdu l6i ' C hai m{t cdu ho[c mQt m{t cAu, mQt m[t phdng D hai m{t cdu 16m Ciu 23: Chii5u mQt rinh s6ng tlon s6c tir chdn kh6ng vdo mQt ktr6i ch6t su6t vdi g6c tdi 450 thi g6c khric x4 bing :00 chitit su6t tuyQt doi cta m6i trucmg riay ta rE a.J: B.'t2 c Jt D.JirJl Ciu24: MOt doan d6y d6n ddi 1,5m mang ddng tliQn 10 A, dflt vu6ng g6c v6i E mQt tir -x c6 d0 l6n cim img tir 1,2 T N6 chiu mQt lgc tir t6c dpng ld truong d€u B 1,8 N A N C 18 N D 1800 N Ciu25: MOt ngudi c6 di€m cuc cfln cdchmht 100 cm Oe nnin dugc vQt gAn nh6t crich matZS cm thi ngudi ndy phii deo s6t mit mgt kinh A hQi c6 ti6u cg 100 cm B hQi Q c6 tt$ tu 0,3 dp phAn ki c6 tiOu cg F -100/3 cm D hQi tu e10 3dp C HET Trans 313 -Mddlthi2}g (4)