lỜi nói ĐẦu - chuyên Đề ôn thi | tổng hợp ... · pdf filenhư...

http://www.hocmaivn.combaigiang,giaoan,tailieu,sachthamkhao,..
b1
LI NI U
Nhchngtabit,trongvinmtrliy,ccthiihckhrngvkh.Trnth
trngxuthinrtnhiuschthamkhoLTHnhngnhiuschkinthctrnglp.Vicc
emhcsinh,trckhibcvokthiHthvicthamgiacckthithlmtiuhtsccn
thitvbchbingipccem:Rnluyntmlphngthi;nhnranhngphnkinthc
mnhcnthiuhtbsungkpthi;gpcnhngdngtonmi
Bncnh,mimtthithultmhuyt,chnlc,sngto,suynghrtklng
caccthycra.Theoti,viccemhcsinhangluynthiihc,thithltiliu
qugivrtbchiviccem,cbitlccthitcctrngchuyncuytn.
25 thi th t cc trng chuyn v li gii chi titgm2phnchnh:
+Phnthnht:Tuynchn25thithtcctrngchuynnitingtrongcnc:
ChuynSPhm1;ChuynHVinh;ChuynHTnh;ChuynPhanBiChuNghAn;
ChuynLamSn;ChuynNguynHu-Hng
+Phnthhai:Ligiichititca20thi.5cnlihcsinhtgii.
Btiliutrntitnghpthicacctrngtthvinvtl,sautichbnvbin
sonli.Trongqutrnhhonthnhbtiliuny,ticthamkhotiliutnhiungun,
trongccctiliucamtsngnghiptrnthvinvtl.
Mcdutkhnhiuthigiannhngnhnghnch,saistlkhngthtrnhkhi.
Rtmongcsnggpchiascaccthy,cgiovccemhcsinh.Mikinng
[email protected].

b2
Phn th nht
25 THI TH I HC 2012 CA
CC TRNG CHUYN

b3
TRNGIHCVINHTRNG THPT CHUYN
--------o0o--------
THI TH I HC LN 3 NM 2011
MN : VT L Thi gian : 90 pht.
M : 149
Chocchngs:Khilngcahtelectronlme=
9,1.10-31kg;intchcahtelectron:qe=-e=-1,6.10-
19C;tcnhsngtrongchnkhngc=3.108m/s;hng
splanckh=6,625.10-34J.s.
Cu 1. Trong th nghim Y-ng v giao thoa nh
sng, ngun S pht ra ba nh sng n sc:
m42,01 (mu tm); m56,02 (mu lc);
m70,03 (mu).Giahai vnsng lin tipc
mugingnhmucavntrungtmc14vnmu
lc.Svntmvvnnmgiahaivnsnglin
tipktrnl:
A. 19vntm;11vn. B. 18vntm;12vn.C. 20vntm;12vn. D. 20vntm;11vn.
Cu 2. Quangphlintc
A. dngxcnhbcsngcanhsng. B. dngxcnhnhitcaccvtphtsngdobnungnng. C. dngxcnhthnhphncutocaccvtphtsng. D. khngphthucbnchtvnhitcavt.
Cu 3. Mchchnsngcamtmythuthanhgm
cuncmthunL=1,5.10-4Hvtincindung
CV thay i trong khong t 0,19 pF n 18,78 pF.
Mythuthanhbtc
A. sngngn. B. sngtrung.C. sngdi. D. sngccngn.
Cu 4. Mt thu knh mng gm hai mt li cng
bnknh20cm,cchitsutivitialn=1,5
v i vi tia tm l nt = 1,54. Chiu mt chm nh
sngtrngsongsongvitrcchnhcathuknhtrn.
Khong cch gia tiu im chnh i vi nh v
ivinhsngtmnmcngphabng
A.2,96mm B.1,48mm C.2,96cm D. 1,48cm
Cu 5. ChomchinxoaychiuABgmhaion
AMvMBmcnitip,onAMgmbintrRv
tincindungC= /100 ( F ),onMBchc
cuncmthunctcmLthayic.tvo
haiuonmchABmtinpxoaychiunnh
t100cos2Uu (V).Khithayitcmtathy
in p hiu dng gia hai u on mch AM lun
khngivimigitrcabintrR.tcmc
gitrbng
A.
3 H. B.
2 H. C.2
1 H. D.
1 H.
Cu 6. Chn pht biu ng khi ni v phn ng
nhithch:
A. Phnngnhithchxyrakhicshpthntrn
chmcahtnhnnh.
B. Nhitrtcaotrongphnngnhithchlph
vhtnhnvbinithnhhtnhnkhc.
C. iukinduynhtphnngnhithchxyral
phnngphixyranhitrtcao.
D. Nu tnh theo khi lng nhin liu th phn ng
nhithchtarannglngnhiuhnphnngphn
hch.
Cu 7. Chiu mt chm nh sng c hai nh sng
nsccbcsnglnltl1v2vomttm
kimloicgiihnquangin0.Bit1=52=0/2.
T s tc ban u cc i ca cc quanglectron
tngngvibcsng2v1l
A. 1/3. B. 1/ 3 . C. 3 . D. 3.
Cu 8. Vt nh c khi lng 200 g trong mt con
lclxodaongiuhavichukTvbin4
cm.Bittrongmtchuk,khongthigianvtnh
clngiatckhngnhhn 2500 cm/s2lT/2.
cngcalxol
A. 20N/m. B. 50N/m. C. 40N/m. D. 30N/m.
Cu 9. Chiu mt tia sng mu lc t thy tinh ti
mtphncchvimitrngkhngkh,ngitathy
tialillmtphncchgiahaimitrng.Thay
tia sng lc bng mt chm tia sng song song, hp,
cha ng thi ba nh sng n sc: mu vng, mu
lam, mu tmchiu ti mt phn cch trn theong
hngcthchmtiasnglrangoikhngkhl
A. bachmtiasng:muvng,mulamvmutm.
B. chmtiasngmuvng.
C. haichmtiasngmulamvmutm.
D. haichmtiasngmuvngvmulam.
Cu 10. ChomchinxoaychiuRLCmcni
tip, cundy thun cm. Bit L =CR2. t vohai
S 1

b4
u on mch in pxoay chiu n nh, mch c
cng h s cng sut vi hai gi tr ca tn s gc
)s/rad(501 v )s/rad(2002 .Hscng
sutcaonmchbng
A. 2
13. B.
2
1 . C. 2
1. D.
12
3.
Cu 11. Mtprotonvntc v bnvonhnLiti
( Li73 )ngyn.PhnngtorahaihtnhnXging
htnhau vi vn tc c lnbng 'v vcng hp
vi phng ti ca proton mt gc 600, mX l khi
lngnghcahtX.Gitrca 'v l
A.
X
p
m
vm . B.
p
X
m
vm3 .
C.
p
X
m
vm . D. X
p
m
vm3 .
Cu 12. Mttxoaycindungbinthinlin
tcvtlthunvigcquaytheohmbcnhttgi
trC1=10pFnC2=370pFtngngkhigcquay
caccbnttngdnt00n1800.Tinc
mcvimtcundychstcmL=2 H
to thnh mch chn sngca my thu. thuc
sngintcbcsng m84,18 thphixoayt
vtrngvigcquaybng
A. 030 . B. 020 . C. 040 . D. 060 .
Cu 13. Cho mch in xoay chiu AB gm R,
L,Cmcnitip.Cuncmthunctcmthay
ic.tvohaiuonmchABmtinp
xoay chiu nnh )V()t100cos(6100u .iu
chnh t cm in p hiu dng hai u cun
cmtgitrccil maxLU thinphiudng
haiutinl200V.Gitr maxLU l
A. 100V. B. 150V. C. 300V. D. 250V.
Cu 14. ChomchinxoaychiuRLCmcni
tip,Rlbintr.tvohaiuonmchmtin
pxoaychiunnh tcos2Uu (V).Khithay
igitrcabintrtathychaigitrR=R1=45
hocR=R2=80 thtiuthcngcngsutP.
Hscngsutcaonmchinngvihaitrca
bintrR1,R2l
A. 5,0cos 1 ; 0,1cos 2 .
B. 5,0cos 1 ; 8,0cos 2 .
C. 8,0cos 1 ; 6,0cos 2 .
D. 6,0cos 1 ; 8,0cos 2 .
Cu 15. mdomtchicnbuphtra
A. nghecngtrmkhibinmcngnhvtns
mcngln.
B. nghecngcaokhimccngmcngln.
C. c cao ph thuc vo hnh dng v kch thc
hpcnghng.
D. cmscphthucvodngthdaongca
m.
Cu 16. Catt ca t bo quang in c cng
thotelectronl4,52eV.Chiunhsngcbcsng
nm200 vocattcatboquangintrnv
tgiaantvcatthiuinthUKA=1V.ng
nnglnnhtcaelectronquanginkhivtiantl
A. 2,7055.10-19J. B. 4,3055.10-19J.
C. 1,1055.10-19J. D. 7,232.10-19J.
Cu 17. Chn pht biu ng khi ni v phn
nghtnhn:
A. Phnnghtnhntannglngthcchtnhn
sinhrabnvnghnhtnhnbanu.
B. Phn ng ht nhn ta nng lng nu tng khi
lngngh ca cc ht nhn tng tc nh hn tng
khilngnghcacchtnhntothnh.
C. Phnnghtnhnthunnglngnutnght
khi cc ht tham gia phn ng nh hn tng ht
khicchtnhntothnh.
D. Phn ng ht nhn thunng lng nu tngnng
lnglinktcchtthamgiaphnnglnhntng
nnglnglinktcchtnhntothnh.
Cu 18. Cho ngso c mtubt kn v mt
u h. Bit rngng so pht ra m to nht ng
vihaigitrtnscahaihamlintipl150Hz
v250Hz.Tnsmnhnhtkhingsophtram
tonhtbng
A. 50Hz. B. 75Hz. C. 25Hz. D. 100Hz.
Cu 19. Mt t boquang in c ant v catt
u l nhng bn kim loi phng, t song song, i
dinvcchnhaumtkhong2cm.tvoantv
cattmthiuinth8V,sauchiuvomtim
trn catt mt tia sng c bc sng xy ra hin
tngquangin.Bithiuinthhmcakimloi

b5
lmcattngvibcxtrnl2V.Bnknhlnnht
cavngtrnbmtantcelectronpvobng
A. 2cm. B. 16cm. C. 1cm. D. 8cm.
Cu 20. Trong k thut truyn thng bng sng
int,trndaongmthanhvdaongcaotn
thnhcaotnbiniungitaphi
A. bin tn scadaongcao tn thnh tn s ca
daongmtn.
B. bin tn s ca dao ng m tn thnh tn s ca
daongcaotn.
C. lmchobincadaongcaotnbinitheo
nhpiu(chuk)cadaongmtn.
D. lmchobincadaongmtnbinitheo
nhpiu(chuk)cadaongcaotn.
Cu 21. Sngintl
A. snglantruyntrongccmitrngnhi.
B. sng c in trng v t trng dao ng cng
pha,cngtns,cphngvunggcvinhaumi
thiim.
C. sngchaithnhphnintrngvttrngdao
ngcngphng,cngtns.
D. sng c nng lng t l vi bnh phng ca tn
s.
Cu 22. Mt mch dao ng in t l tng
angdaongtdo.Tithiimt=0intchtrn
mt bn t in cc i. Sau khong thi gian ngn
nht10-6sthintchtrnbntnybngnagitr
cci.Chukdaongringcamchdaongny
l
A. 4.10-6s. B. 12.10-6s. C. 6.10-6s. D. 3.10-6s.
Cu 23. Cho mchinxoaychiu ABgmhai
on AN v NB mc ni tip, on AN ch c cun
cm thun L = 5/3 (H), on NB gm R =
3100 vtincindungCthayic.
tvohaiuonmchABmtinpxoaychiu
nnh t120cos2Uu (V).inphiudng
trn on mch NB t cc i th in dung ca t
inbng
A.
6,3
10 4 F. B.
8,1
10 4 F. C.
36
10 4 F. D.
2,7
10 3 F.
Cu 24. Vtnhcamtconlclxodaong
iu ha theo phng ngang, mc th nng ti v tr
cnbng.Khigiatccavtclnbngmtna
lngiatcccithtsgiangnngvth
nngcavtl
A. 1/2. B. 3. C. 2. D. 1/3.
Cu 25. Mtpho tng cbng gbit rng
phng x canbng 0,42 ln phng x ca mt
mu g ti cng loi va mi cht c khi lng
bng2lnkhilngcaphotngcny.Bitchu
kbnrcangvphngx C146 l5730nm.Tui
caphotngcnygnbng
A. 4141,3nm. B. 1414,3nm.
C. 144,3nm. D. 1441,3nm.
Cu 26. Mt chic xe chy trn ng lt gch,
csau15mtrnnglicmtrnhnh.Bitchu
kdaongringcakhungxetrncclxogimxc
l 1,5 s. xe b xc mnh nht th xe phi chuyn
ngthnguvitcbng
A. 34km/h. B. 27km/h. C. 36km/h. D. 10km/h.
Cu 27. Mt con lc l xo gm vt nh khi
lng0,2kgvlxoccngk=20N/m.Vtnh
cttrngicnhnmngangdctheotrc
l xo. H s ma st trt gia gi v vt nh l
0,01.Tvtrlxokhngbbindng,truynchovt
vntcbanu1m/sththyconlcdaongttdn
tronggiihnnhicalxo.Lyg=10m/s2.
ln lcnhiccica lxo trongqu

lỜi nói ĐẦu - chuyên Đề ôn thi | tổng hợp ... · pdf filenhư...

Documents