luyện thi đại học 2008 - 2009

đề 2. ôn tập đại học  Câu 1. !"#$! %&' ()*+,-./0123124(5 A. 6!*, B. 6**, C. 7*, D. 4*, Câu 2. 89&%:;<=> 3?'@,A3%B C 8%839&%/?(%D A.E@., B."8%83%FB, C."8%83%;., D.=18G%B, Câu 3. H>19'I6J&%(%JD!,-G%K=LM  N6) + 6* +    π ≈ ,=OI*P>G%9IQ(%RS&%T,UT DC>(5 V, 6*W +NXW X   π π = +  L, QW +4XW X   π π = + =, 6*W +NXW X   π π = − Y, QW Q + 4XW X   π π = + Câu 45=O%.,HM ZI!"#,-?$[ + ) π D CM( I\7+ ! ,<π ! I6*,LCM(5 V, 6* !  L Q ! =, ! !  Y,H/]J/, Câu 5.H>19&%1^?T$VI7,L32C >19(JI6Q*A+,"_9/]`Ca(:(M%R0]b9 6 I\V+!3]b 9 ! IV+!, A.4c, B.*6!c, C.*!)c, D.*c, H>19:M'I6!Q19'2JIQ*A+d2 $Q,<I6*+ ! ,=O PM$>%(J'M@]b$[ %R,RMG%]b19J`_2!( *6*Q *,6Q! **!4 *6N6 =>19^d2&%(JM@]b/K=L)DM  CM$[J`(P(19J`$]$3,<Ie ! , CMJG%]b $[( I4!7+ I6!Qf+ I4!7+, IN6)6+ HM&%1$R%2 Q ) *Q 4   π π   = −  ÷   '9b$[( ,K(R(%MgG%]b ! N = ^&%CFOh  N  =  4  =  ) N  =  ! N  = HM&%(^?TD9I)W!*\ 4 π XWX,KM %$DC M%J.I 67 4* π JR0J$>%(5  V,Q!,!f+L,Q*f6+ =,Q*,!7+Y,Q),N6+, H>T'J SI6J(^I!'8 aCd2αI*6fQ,=O 3BO ]b?Ii7+ ! ,=TB(M CM J'@]b?(5 V,jI!ck 9 I!+L,jI*N*ck 9 I*ff+ =,jI*N*ck 9 Iff+Y,jINck 9 Iff+, 5b8&'%:J3S?VL  !7"#,RH//%:VLSlJ. 6 I!6 ! I!Q,m''$ a,nlH(%aCVL'$_aJ/,KM %&'(5 đề 2. ôn tập đại học V,66!+ L,Nf+ =,!7+ Y,*Qf+ H2@R(<I6**L,Ao^C'(p * I6* q6* r+ ! D @R'( *6r+ ! **6r+ ! 6*r+ ! 6r+ ! H%:'TO&%1^?TD%IW6*πsπ+!X,-. /lR%?T%&'('CR8?% π+N(Q,KM %&'( 4+ 6Q*+ fQ+ 6**+ ,[Rm6m!/%7!%:'T J3S?&%(^?Td2' 6Q"#(%`:?,L3M  %&'(N*+$'J`EJ%&,m R $am6m!(      7,  66, Câu 15.t%CS(:?TD%I),W) π XWX' ' I!*+,HRH/J.!Q ?TD5 A.% H I)W) π s ! π XWX, B.% H I)W) π \ ! π XWX, C.% H I)W) π XWX, D.% H I)W) π s π XWX, Câu 16. <='%JuI  π ! kBS8C A. -`$3^, B. L3%(^%Ju+!, C. L3%(^%Ju, D. L3%(^%Ju!, . HO':<I!,6* \4 W"X(F8'8%=$3,A % $>S/'80'$'067 π WX3!)* π WXD8%=?.[ 5 A. 6! 6* )Q,6* W X 7,6* W X   − − ≤ ≤ B. 6! 6* i,6* W X 64,6* W X   − − ≤ ≤ C. 6* 7 )Q,6* W X 7,6* W X   − − ≤ ≤ D. 6! 6* i,6* W X 64,6* W X − − ≤ ≤   Hb@:%'a.<(F'8%=I**! µ v,- E]/]aC8%83l$.aF8(1 8S(w * I6K(p * I!**V,"8%83l$.F8R1 8$[6**V(5 *744K, *4))K, *)NNK, *477K =%6i,H:F'8%=I6*xv(%.'a.<I6" e ! I6*,-.>b0PBS8a3PBS0 $[lBS8a(  6 )**  ,  6 N** ,  6 !** ,  6 6** , U/$R%(%(J'&BS<=b@h ABS(?CS$.( ABS8M?%@F8(BS0M?%@%., ABS8(BS0$3%(y , -BS0aDBSCa, 2. ụn tp i hc !6,HTJ`:$$?'8/?]2z?(!!*K,L3`%C T!!Jr(8 `%$[*7,=188%FG%z%CT (5 V,6!QVL,Ni!V =,6*VY,**6!QV =89&%J`?/T { 6** = *N67 = Q* à = XXW ) 6**W!!** = ,LR%218G%(5 XXW6**W! = XXW6**W!! = !W6** XW X ! = XXW ) 6**W! = H/?/89&%'`%6*Hr,Y18?/%JB33 Q**JKS%&9$[.'8@Q*,D`%?b5 UI)*Jr, UI7*r UI!*Jr UI!*r =%!). Một mạch điện RLC nối tiếp, R là biến trở, điện áp hai đầu mạch XKW6**!6*% = . Khi điều chỉnh R 1 = i và R 2 = 64 thì mạch tiêu thụ cùng một công suất. Giá trị công suất đó là: A. 8W B. !)* W C. 0,8 W D. 4 W =%!Q,=9&%';<=> 3? 6 N* k = = k=E8%83!% (%I6! ! 6** WKX=$[$%D%y?,DUJ' = = 4 10 A.C F,P 450W = = 4 10 B.C F,P 300W = = 4 10 .C F,PC 480W = = 4 10 D.C F,P 100W Cõu 26. =8;<='<I6+ " ! 6* ) = v(;I6**|,t(%8/?%I !**W6** X,"_9/]$R%28/?l$.F8, A. %I!**W6** \ +)XK, B. %I6** ! W6** s +)XK, C.%I!** ! W6** \ +)XK, D.%I!** ! W6** s +)XK, =%!f. Mạch RLC nối tiếp, cuộn dây có = )* , độ tự cảm " Q 6 < = , tụ có điện dung v Q 6* = N = , điện áp hai đầu đoạn mạch có tần số f = 50 Hz. Giá trị của R để công suất toả nhiệt trên R cực đại là: A. )* B. 4* C. Q* D. f* Cõu 27.<S8%839&%%I ! Q W}XK}J`E(%z?~5 8@%;%%.'a.<F8'8%=D18G%z?~ &%'/]8%F$[!QV,t8%83((%:/?~ > 3?DE@C( A. !**|, B. 6** N |, C. 6)6)|, D. 6**|, =8:;<=> 3?,L3<I*,N67"=I!Q* à v8%838%F %wI!!QK`%%FCUI)*Qr 18(Q*"#,"8 ` %C'l/](%5 V, I*,) L, I*,fQ =, I*,4*,7 Y, I*,)Q*,4Q t(%;<=8%839&%5 6!* ! 6** = WKX,L3 !* N = 4* = (a.<EW%%.X, /]<R a(/]aC $[$%h đề 2. ơn tập đại học V, 9 *7 k 6!*      π = = L, 9 *4 k !)*      π = = =, 9 *4 k 6!*      π = = Y, 9 *7 k !)*      π = = H9&%:;(%%.<> 3? 6** = Ω  1 8ZIQ*"#,"8%838%F@!%wI6!*K,<'/]$%3%%  (8 %6' * 4* $3/]`%CP', V, N   π = UIN4r L, 6 N   π = UIfQr =, 6   π = UIf!r Y, 6 !   π = UI66Q!r b8p\J^/%*7(/(G%/(6!,=3%: $29T>€ 6 I*fQx(€ ! I*Qx(J^p\,A3%$&y(6*D '$%/'(% (%C/%, ,'Q/, ')/, ,'N/, ,'4/, =3%S(`C3$(G%8$2980' Z 6 (Z ! I!Z 6 D 8%83(1G%88%'/]T2()K(7K,Z 6 '/](5 Z 6 I!)6Q,6* 6Q W"#X Z 6 Ii44,6* 6) W"#X Z 6 I6iN!,6* 6Q W"#X Z 6 I6Q)!,6* 6Q W"#X NN,H'B$[BS•C',KM C'(5 V,!,6* 7 +, L,!Q,6* 7 +, =,!4,6* 7 +, Y,!7,6* 7 +, =%N),= { % ‚ % ƒ ` „  { $ ‚ G% „  { $ { 9 „  { $T {  { λI)** ‚ λ…I*!Qµ† ‚  {  „ ` { $ ‚ % „  „ % ƒ ^^G% „  { ?`%,• {  „ ` { ^^% ƒ J  „  ‚ ,=I44!Q,6* \N) c ‚ IN,6* 7 +, V,VINNifQ,6* \6i c,L,VI!N7Q,6* \67 c,=,VIQi4!Q,6* \6i c,Y,VI6i7fQ,6* \6i c, =%NQ,Cho 1 eV = 1,6.10 -19 J, h = 6,625.10 -34 J.s, c = 3.10 8 m/s. Khi electron trong nguyªn tư hy®r« chun tõ q ®¹o dõng cã n¨ng lỵng E m = -0,85 eV sang q ®¹o dõng cã n¨ng lỵng E n = -13,6 eV th× nguyªn tư bøc x¹ ®iƯn tõ cã bíc sãng: A. 0,4340  µ B. 0,0974  µ C. 0,4860  µ D. 0,6563  µ ,Tại thời điểm ban đầu người ta có 1,2g Rn 222 86 . Radon là chất phóng xạ có chu kỳ bán rã T = 3,6 ngày. Sau khoảng thời gian t = 1,4T số nguyên tử Rn 222 86 còn lại là? A. N = 1,874.10 18 L,AI!64Q,6* 6i =,AI6!NN4,6* !6 Y,AI!)4Q,6* !* Câu37. L3J S α I)**6Q%k ? I6**fN%k  I6**7f%k6%IiN6QH^K,ABS R%. JES?S!!)Jb"^W@JX0/%`( A. 6)6,6* !) 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I6*,=O @]b$[]b19_NDM CM'(5 !*e+, !e+, !*e+, 6*e+, Câu 49. %&`%86WHrX3T%F$[6?8%83 8%F6*WJKX,H8'8 `% ϕ I*7Q,H% •8BS/ J`G%/Q‰`%%&D8@C?.'/] A. ; ≤ N46W Ω X B. ; ≤ N46W Ω X C. ; ≤ N46W Ω X D. ; ≤ N46WJ Ω X Câu 50. H?'9'%Ju$/_(N7(,m%66)(D?'9W ?'9XCS?'91$[$%?B?'9CS ?'9$%h A. 7fQ‰ B. 6!Q‰ C. !Q‰ D. fQ‰  ! " #$%#&'(     ! "  # $%&'() # * " +, đề 2. ôn tập đại học )*+,-./0 " + Câu 51. -''0VL% ] ()!"#D'fP, H% VL'QPD ?.( A. !7"# B. 4N"# C. N*"# D. Q77"# Câu 52. =>19^d2:192JI6**WA+X(MJ S I6**WX,-‹M^?Td29% (19_NWX:%&'M  !* N-  . , ,<I π ! I6*W+ ! X,J.6+)%JuG%_MS JR0P$>%%R( A. )**WX B. !Q)WX C. Q)4WX D. 7**WX Câu 53. t;<=>(8 Z 6 D.J/(N4W Ω X(%J/(6))W Ω X, A3%8' Z ! I6!*W"#XD18y?8%83@% ,n/]Z 6 ( A. Q*W"#X B. )7*W"#X C. N*W"#X D. 4*W"#X =%Q),L3^G%/bC$/9^ FC'(6!NJ, ! ,L/9^G%M  'J`E(G%S4*!1?P,bBC$/9^, V,i6c L,!)))6-c =,iiHc Y,!!!Q-c =%QQ,H1O'$/Jb6Q'^G%/b**)J, !  FC',;1O ]%/F$@aJ`E6!A3?%3(,<P%1O2,b'G% C1O%JG%S64,LG%Oa. V,6Q** L,6Q* =,fQ* Y,Qf4 =%Q4,HM&%1O^F9G%]b$[$V(%Ju, J.+NG%_(M'RS( V,W√N\6XV L,V =,V,√N Y,V,W!\√!X =%Qf,G%?EC%~`$'CG%?E2_<( λ * I6!!*C" α (" β S(λ 6 I4Q4*(λ ! I)74*,L'3? ^_<(5 λ *6 I6*!i µ (λ *! IifQ µ k λ *6 I6*!i(λ *! IifQk λ *6 I6*!i µ (λ *! IifQ µ k λ *6 I6*!i(λ *! IifQk " 6) 4  (?'9 β  / ''%JD$/_(QfN*B,m%$%DS ?'9Cˆ%•1$[6+7S?'9$%Cˆ%'h=O/?/P%5 6f6i*B 6f6iB 6i6**B 6i6*B =%Qi,=?.2 nArpCl 37 18 37 17 +→+ J SC/(WVXIN4iQ477i% W=XIN4iQ4Q4N%WXI6**74f*%W?XI6**f!f4%6%IiN6H^K+ ! ,ABS(?.2 (.%((5 %(!Q4!66!,6* \6i c, .64*6N!H^K .!Q4!66!,6* \6i c, Y,%(64*6N!H^K =>19^?T?TD9IVWωsϕX,=2%l J.$[%($[π+)*WXDBCM$[3BC19,=> &%( '$[5 !*, q6 7*, q6 )*, q6 6*, q6 . $%&'() # * " +, đề 2. ôn tập đại học )*+ ,- ./0 " + Câu 51. - ''0VL%. tập đại học  ! " #$%#&'(     ! "  # $%&'() # * " +, )*+ ,- ./0