Tài liệu BAÌ GIẢI CHI TIẾT MỘT SỐ CÂU ÐỀ THI TUYỂN SINH ĐẠI HỌC KHỐI A, A1 NĂM 2013 Môn thi : VẬT LÝ potx

 !"# $%&"#'())(*)+,) BAÌ GIẢI CHI TIẾT MỘT SỐ CÂU ÐỀ THI TUYỂN SINH ĐẠI HỌC KHỐI A, A1 NĂM 2013 Môn thi : VẬT LÝ – Mã đề : 426 -./01232+45' 6,7 89&:;&<=>?15325' 65( 9&:"" @AB1,5' ) 9@C@DE15' +  I. PHẦN CHUNG CHO TẤT CẢ THÍ SINH (40 câu, từ câu 1 đến câu 40) Câu 1: F&<"# '  G  = ω HIJH; ' G K ω AB&LJK&M&NN!: >ABM%.#;O&<P&<H>&L&DQJR1 '  SDE &:T&<@N;#UK 5 ϕ H 5 ' + π < ϕ < JK&<"#<O&M:> K74IR1, '  SDE&:T&<@N@V#UK + 5 + π ϕ = −ϕ K&<"#< O&M:>K5,4I$"@WXG ' gần giá trị nào nhất&>Y Z(4I [*4I 27I \5,'I $% G 5 174HIJ G + 15,4HIJ6666] 5 + d d U U 1,6666]^ + 1,^ 5 66666]_ 5 1,_ + 6666666_ 5 + 1(_ + + ` + aH_   _ 5 J + 1(` + a(H_  6 , 5C Z J + 66666]+H` + a_  + J1_  _ 5 66666]` + a_  + 1 + 5CL ZZ 5 5 d d Z U 1 5 Z U 6666666]G1G 5  5 5 d Z Z 1G 5  ++ 5 + 5 ++ + L CLCL ZR ZZZZR + −++ 1G 5 , + Y 5 − Z Z C  HbJ ϕ 5 1 R ZZ CL 5 − 9ϕ 5 1 R ZZ CL + − 1 R Z Z C L , 5 − + 5 + π ϕ ϕ = − 66666]ϕ 5 aϕ + 1 + π 66666]ϕ 5 ϕ + 165HSϕ 5 c'J R ZZ CL 5 − R Z Z C L , 5 − 165666666]H_   _ 5 JH_  6 , 5C Z J16` + 6666666] ` + a_  +  7_  , 5C Z a , + 5C Z 1'66666666] + 5CL ZZ 7_  , 5C Z a , + 5C Z 1'666] , + 5C Z 6 2 4 5CL ZZ 1' 6666] , 5C Z 6 2 4 L Z 1'6666]_ 5 1+34_  HbbJ666666]G1G 5 , + Y 5 − Z Z C  1G 5 + Do đó U 0 = U + = 2U d1 = 90V. Câu 2:@:=<d6e""3-D;P""&UK2''3 A%"fAg#K5R%"hF#ijA&.K" K+R%"&DQ@?KP"@W-/ Z53+ [534 '3( \'3, 5  !"# $%&"#'())(*)+,) \k D i a λ = 153+5' − , 153+ Câu 3:@=<d6e""3.>""&UK-/ ""&UKKKf>?"&eA<A"S@?K" ZA%AB>&L [A%0? W@=@>&L \A%%l λ K ]λ  ⇒ K ]  Câu 4:mP&<hPM5'nop@>e@AB;-D;PK Z2' [2 ,' \, c f λ = 1,' Câu 5:F&<"#1 5+' +  + qπ HIJHq>&L&DQJK&M&NN.# !:%MP&:r%3&<@s`KO&<P&<O3;` + c+Rq1q 5 S&<"#<Of&MO&<&Nr&NRq1q + 1 5 q + S&<"#<Of &M&<@s&Nr&NRq1q , S&<"#<Of&M:%&Nr&N G l $"@WXG l gần giá trị nào nhất&>Y Z5*,I [4*I 574I \)4I $%"#O 5 G G + +  + ' + nZt =         +         ω ω > 5 + + + l + =+ L C L f f U U I;q , q 5 1q + +  ?q , 1+q 5 >q  1+q  h&P=&AG l 15,)I Câu 6 :n:uv&:&eTC@Owl;-?&:43AS+NE&k 1'3u&-/weDUDU@S&:XuK Z l 4H  J + π = π − HJ [ l 4H+  J + π = π − HJ  l 4H+  J + π = π + HJ \ l 4H  J + π = π + HJ Câu 7:xrX:">#"&<l>e:#K&M&NNZ3[ .#!&<@s2(35 Ω 3:%MP&:r%KO&<P&<5*23) yµ  [v&<@sMX":>X">#"[.@B">#"PF#rR@B >&e;&: 5  5,4'= T#zF +  5)''= T#zSB{?OX&N NZ[KD:r%P"@Wgần giá trị nào nhất&>Y Z'3)o ['3*o '32o \'3+o $% =→ −+ = −+ →= L C LR C LR ZZ + + + + + + + 5 5 + + 5 + + + + + 5 5 + J  5 HJ 5 H ω ω ω ω ω ωξ ξ Câu 8 :n:uv&:&eT:|&NiK5+\&:K>P-? &:K Z, [+7 2 \5+ $% A=12/2=6cm Câu 9:n:NPADQ} ' >.DU&3ADQ&:HADQDU &=JXNK>A>k&:;&:'32HK&:""@ABJK Z53+4 '  ['3,2 ' 53*4 ' \'3+4 ' Giải +  !"# $%&"#'())(*)+,) ' ' ' + + + 53+4 5  5 '32 m m m m v c = = = − − Câu 10:n:Tl!uvPADQ5''KTlP&:j7'x&DQ&F @?F#iAB"Iuv&/>?sW@=-/3N1'3"Or y1+x?uvHS~J&:&eT&.E&k  , π = Sh" Ory\&:&eTXAABTry"OP"@W-?&:gần giá trị nào nhất &>Y Z( [55 4 \* Giải: az&Mu&sI[SPy"OSu>I[~;Kw•"I[€K m K F '43'= = 5cm mà lúc đó v = 0 nên A= OO’ = 5cm. Chu kỳ dao động T = s5' π + Sau khi vật đi được 5+7 , 5' , , TT T T ++== π vật có toạ độ x = ,43+ + , = A cm và v = v max /2 + thôi tác dụng lực F thì VTCB lại ở O vì vậy nên toạ độ so với gốc O là x = A A + + , biên độ mới là A’: A’ = =++ + + l + J+H J+,HH ω v AA 9.659cm Câu 11:F&<"# ++' + 5''u t π = HIJK&M&NN.#!&<@s 5''R = Ω 3O&<P 7 5' + C π − = yK:%MP 5 L π = o[kjDE&:T&< @&NNK Z +3+ +  5'' 7 i t π π   = +  ÷   HZJ [ +3+ 5'' 7 i t π π   = −  ÷   HZJ  +3+ 5'' 7 i t π π   = +  ÷   HZJ \ +3+ +  5'' 7 i t π π   = −  ÷   HZJ Câu 12:$%•:<‚@@>eB&&j>?;F&{s:&: l"&W@F#it=N@"{9&DEi<;@"{&A &:'@"{D:%M3-"A=K2,*'A3ADQK25' +7 AKAS> @OXPK+7E9/{#ƒ$1232*5' 655 x + A + mPrHq],'nopJ #"h<@>ei&."&k/@?t=N@"{@A%A&:K ?D;&>Y ZhA&:*( ' +'•&.A&:*( ' +'• [hA&:), ' +'•&.A&:), ' +'• hA&:)4 ' +'•&.A&:)4 ' +'• D. Từ kinh độ 81 0 20’T đến kinh độ 81 0 20’Đ. $% &:<-/|&NH&DE&JASHKE&5 T1+7J 1+πH`aJ , w w• ,43+  !"# $%&"#'())(*)+,) hd ht F F= ⇒ + + + +  7 H J H J H J GM m mv m R h R h R h T π + = = + + ⇒H`aJ1 + , +  7 GM T π 17+55+)*5 ⇒1,4*7+)*5 IS<#"Pr?P@>ei&.F&{KSvM;N-s vnx@?S~ $CIKW@=<kn3xKA&:P&-/"@WPα  '545+ OM R OV R h α = = = + ⇒α1)53, ' 1)5 ' +'„  Câu 13:n:!#"P&:&eTN@P@T&!w@>e@?FD; ;-D;Pλo&knKx:FD;3/@?#DU@>ePK"#M •D;&&:[.wn1)λ3wx15+λKwnBP;wx@?&Nnx3 &kK#M•D;&:DQ#;&:X!wK Z4 [7 2 \* $% f&kDQ#;w"w:&N1HAa'34Jλ;wn1)λ≤≤wx15+λ⇒P7 &k=Q#UA1…)3(35'355† Câu 14:$Cn3x3^K"&k@?:Tlg3&DQ@i&js&kw&WRT lPeKr?Swn1nx1x^15'$uvK&MD;^XTlKA= =&ku&:&eT#DUi&j@"@S&:3}&:;r A‡;{K&:;rA‡v{"O?w-/,9Tl&e9A%"; {f&knKxK5+{>π + 15'Iu&:;MK Z+3(op [,34op 53*op \+34op $% anx l 15+?eK;{XTlK  l 1,21 ' aZa cmlAl 2 '' =∆+→∆ H5J a-Ky l 1,y  ?VKP Al + ' =∆ H+J h53+VK=&rq1+34op Câu 15:oNP&:OAK;SP Z0DQ?A.Kv [0DQ?A.K; 0DQ?A.@?K; \0DQ?A.@?Kv Câu 16:RPe#BB3#"-kKD;&>&zY Zx0DQX#BBK;A-D;P""j;#BB&PK; [BBPk!N@@N"&j>? I;ˆ""&UPMql"&W3"#BB&e0DQD \x0DQX#BB""=vU0DQX#BB""&v Câu 17:@?:Q>&K!K53&M&W3&PPh;4zPHAk% &M>J[D;PXP@>e@?&>K Z5 [534 '34 \+ $% 4zP⇒A143λ1+lA1+571'34 R R h+ O M V α N 7  !"# $%&"#'())(*)+,) Câu 18:F&<"#1 ++' + 5'' t π HIJK&M&NN.#!&<@s +'Ω3:%MP&:r% '3) π oKO&<P&< , 5' 2 π − yR&<"#jEf &M&<@s-/ 55' , IS&<"#jEf&M:%P&:;K Z,,'I [77'I  77' , I \ ,,' , I Câu 19:oN&:&<h=Ds&P&:&<hr<=XO&< @N&:j{KjMDQK 5 K + ; + + 5* 5 + 7 53,5'q q − + = 3=-/ ‰E&k3&<=XO&<KDE&:T&<@N&:j{MDQ K5' 6( K2Z3DE&:T&<@N&:jP&:;-/ Z7Z [5'Z )Z \2Z $%  5 15' 6( K 5 12ZK + + 5* 5 + 7 53,5'q q − + = H5J . 5 15' 6( KH5J + + 5* 5 + 7 53,5'q q − + = H5J⇒ + 1,5' 6(  + + 5* 5 + 7 53,5'q q − + = {>&NK+.E⇒ 5 5 + + ) + 'q i q i+ = H+J  5 15' 6( K 5 12ZK + 1,5' 6( KH+J 5 5 + + ) + 'q i q i+ = ⇒ + 1)Z Câu 20:n:T#%j#NPB{+''n@/K-:0DQKT #%jK>@&er#NX +,4 GK&!WK>}-W?-s"@S# Nˆ0P,24K>9ˆ#N@+''nI9Z6B66&@Bx Z 123'+5' +,  65 RDQ +,4 GKT#%j?O@,0K Z72532A [72532 +,'3)A \+,'3) $% 11x 5 ; 5 1+''nI1+''5325'− 5, 891,,24+7,2''HJ ⇒x1H 5 J⇒1n1xnx Z 1nH 5 x Z J1+,')+,1+,'3)+,A Câu 21:@:=<ePD;3!PA.Q#w 5 Kw + &: ‚#3‚-?&:C<C&:BPwl>H:FD;J;C&:KW@=&F !w 5 T!w + /@?@Ow>o&kK/@?wlPw1734Kw1 )\W>k!w + @?@Ow>&.W@=P · + PO Q P"@W;{S#M •D;NAB&:T#M•D;N&:;-?&:r&N[.fK ABTr&NKA"@?&Nw3&kM{K"#M•D;&:; -?&:r&N":&NK Z535 [,37 +34 \+3' Câu 22:\‚:NαP&:0*3*nI-KN  57 * N &&j>?>@ #%j 57 5 5* * 5 ) N p O α + → + oN#@BB->@#DUBP;#DU->;X NαADQ"N α 173''549  153''*,9 x57 15,3(((+9 w5* 1523((7* [.51(,534nI + :0XN 5* ) O K Z+3'*4nI [+3+57nI 23574nI \53,74nI $% Wu-%K&:DQ p O p p p α = + r r r S p p p α ⊥ r r ? + + + O p p p p α = + ⇒+ w R w 1+ α R α a+ # R # H5J Wu-%K0DQ H J(,534 N p O p O K m m m m K K α α + + − − = + H+J PR α 1*3*nI3%<H5JKH+JS&DQR # 17375*nIKR w 1+3'*4nI 4  !"# $%&"#'())(*)+,) Câu 23:$;N&<X:ANK'3*4µB"?@@AvANK> -/ Z+3245' 65( 8 [+2345' 65( 8 +3245' 6,+ 8 \+2345' 6,+ 8 $% hc A λ = 1+3245' 65( 8 Câu 24:F&<"#1G ' ωHG ' KωAB&LJK&M&NN.#! &<@s`3O&<P&<3:%MP&:r%>&L&DQR1 5 K 1 + 9&<"#<Os&M:%P‚"@W9&:<#X&<"#s&M&N N;DE&:T&<MDQK'34+@K53'4@R1 ' 9&<"#<O f&M:%&Nr&N9&:<#X&<"#s&M&NN;DE&: T&<Kϕ$"@WXϕgần giá trị nào nhất &>Y Z534*@ ['3),@ '3+2@ \'375@ Câu 25:K&>không#%K#PlNY Zγ [β a  α \t Câu 26:"j0DQX"@N"hX>?•&@B&DQl"&W-/-k j + 5,32 n E n = − HIJH153+3,3ŠJx.>?•&@B{#O:#BBP0DQ+344 IS-D;Pv{X-jlNK>?•&@B&PPk#"@K Z53725' 6)  [53++5' 6)  73)*5' 6)  \(3*75' 6)  Câu 27:n:PS&@>e@?:Q>e DUX@OwloS~B%SNXQ>NE&k  5 H&DE‡&jJK + 1 5 a'3,HJH&DEe‡J NE&k + 3uX&kx@?&>K Z2437 [62437 6,(3, \,(3, Giải: + Từ hình vẽ dễ dàng thấy: cm7'= λ Tốc độ truyền sóng: v= 15/0,3 = 50cm/s Chu kỳ sóng: T= 40/50 = 0,8s + N đang ở VTCB và dao động đi lên vì vậy: V N = v max = A ω = 39,26cm/s Câu 28:FK&M:U{#X">-."#n 5 :&<"#l>eP"@W< O+''IR&M:U{#X">-."#n + K&M:j{#Xn 5 S &<"#<Os&M:j{#Xn + &ks-/5+34IR&M:j{# Xn + ;&M:j{#Xn 5 S&<"#<Os&M:U{#Xn + &ks -/4'I[vC#=n 5 P}fT>:U{#KT>:j {#-/ Z2 [54 ) \7 Câu 29:n:A>ƒ#i3g3SfuP<=2' + 3>&e: @O&ljH:F#iXAJ@h@DE&ePU%jhBP; @O>KP&:;'37hBr&NA>K Z+375' 6, - [53+5' 6, - 73)5' 6, - \'325' 6, - $% BSΦ = 1'372'5' − 7 1+375' 6, - Câu 30:<0&DQ@>ehU#"&.:AD-/&DE>:#;< {@>e%K('‹#=&<0}v<@?&DE>KABDQ" +'‹x.B{•O&<XADK>0+'‹Kf>?&<"#sU#" S<{@>e%&<0@?=&DE>&PK Z)43)‹ [)*3*‹ )(3+‹ \(+3)‹ 2  !"# $%&"#'())(*)+,) Câu 31:[.-"A=[K@ ' 143,5' 655 ["A=|&Nhn@>?•&@B-/ Z)73)5' 655  [+53+5' 655  5,+345' 655  \7*3*5' 655  $% nP1,3@1, + @ ' 1(43,5' 655 17*3*5' 655  Câu 32:o&UPeKMDQK)5K27&DQ@s@M:0#T R"uvX&sW@=-/3&!E@>ez"u‚ D;&:&eT;‚-?&:P3@F#i ;$C∆KA%E{Akhz@>eu&.z>@ $"@W∆gần giá trị nào nhất &>Y Z)35+ [+3,2 *3+' \'374 $% a\NK>{KI&:l 5 3l +  t 5 1ZH J +(3' ππ +t 9t + 1ZH J +)3' ππ +t ao>Al 5 1l + %SP  1'37+, Câu 33:n:uv&:&eT#DU@Sl1Z7πH=-/J=h1'3 A%E{&kXuP&:;-/:•&:;r&NK Z'3'), ['35+4 '35'7 \'352* $% 121'342155+1'3'),,,, Câu 34:o&:&eT‚#DU3‚MP-?&:MDQKZ 5 1)3Z + 154 K<# + π \&:LQ#X&:K>P-?&:-/ Z* [55 5* \+, $% + + 5 + A A A= + 15* Câu 35: $C ε  K0DQX#BB""&v9  ε K0DQX#BB""O9 I ε K0DQX#BB""Km#l.#K&>&zY Z ε  ] I ε ]  ε [  ε ] ε  ] I ε  I ε ]  ε ] ε  \  ε ] I ε ] ε   Câu 36: o<>@r?j&!W#PlN +,4 G K +,) G 3;Œ<N +,4 G K N +,) G K * 5''' [.AS-"@X +,4 G K +,) G MDQK*3''5' ) 0K734'5' ( 0 "&>-?03@r?PŒ<N +,4 G KN +,) G K , 5'' Y Z+3*7}0 [+3++}0 53*7}0 \,354}0 Câu 37: @?:&DEi&W@B@DE&iD;3AB{#OK#%lN 3:">s"!:A%&DQPjDE&:K9AW >k">@l!?(SjDE&:&DQK +'H[JR% "K Z) [5 ( \5' Câu 38: @AB3""P-D;P;{@"""&U&v3 K33=K Z""= [""&v ""K \"" Câu 39: NN.#! :%M3&NNtKO&<HS~J *  !"# $%&"#'())(*)+,) R&FK&MZ3[&<"# Z[ '  G H  J= ω + ϕ HIJHG ' 3 ω K ϕ AB&LJS +  5ω = 3 Zx G +4 +I= K n[ G 4' +I= 3&!E Zx  ;# , π ; n[  $"@WXG ' K Z +4 57I [ +4 *I  5+34 57I \ 5+34 *I $% aS +  5ω = ?G  1G  u> Z[ 1 t aP Zx a n[ 1  a t a t a  1+ t 1+ Z[ ABMBAN UUU +=+→  h%&!VKS&DQG 'Z[ 1 +4 57I Câu 40: n:uvADQ5''&:&eT;AS'3+KU0K'35)8 H.0NW@=-/J9{> + 5'π = N&: , + 3}&:0K.0K Z, [7 + \5 + 5' T π ω π = = 3 + + '3'2 2 + m A W A m cm ω = ⇒ = = 9 + + + d t t t W W W A x W W x − − = = 15 Câu 41 : RPe#LN#"lN3#"-kK&>K saiY Z#LN#"lNX:>?K:<fN"@?•30 "-sfA% [#LN#"lN{@F{v#"@A-WP @#LN#"lNX>?•&@B3s‚""S{>P-N &F@DKN&v3N3NKKN= \#LN#"lNX">?"CA"SA" \k Câu 42: n:N=Ds&r<&:&<hr[.&<=r&NXO &<K ' KDE&:T&<r&N@NK^ ' NE&kDE&:T&<@ N-/'4^ ' S&<=XO&<P&:;K Z '  + + [ '  4 +  '  + \ '  , + Câu 43:ADQXN#@BB3U@BKN&U@ + 5 \ MDQK53''*,953'')* K+3'5,2[.51 + (,534nI  x0DQ?A.XN + 5 \ K Z+3+7 nI [737)nI 535+nI \,3'2nI Câu 44: n:uv&:&eT;-?&:7KAS+&DEu&&DQ @7K Z) [52 27 \,+ $% 171+⇒m1+7Z1+771,+ Câu 45: n:&UPeK5+53&:&eTNUP@C@DE {> + 5'π = AS&:XK Z5 ['34 +3+ \+ + l T g π = 1+3+ Câu 46: $%•:!"}#"@""&UPM*45' 57 opB{#" lNX!K5'm#BBK!"#"@@:>l{#l}-/ Z'3,,5' +' [+3'55' 5( '3,,5' 5( \+3'55' +' W N Nhf P t t t ε = = = ⇒ Pt N hf = )  !"# $%&"#'())(*)+,) Câu 47:F&<"#1G '  5''  5+ π   π −  ÷    HIJK&M&NN.#!&<@s3 :%KO&<PDE&:T&<NK1^ '  5''  5+ π   π +  ÷   HZJo<B{ X&NN-/ Z53'' ['3)* '3*5 \'34' ϕ1ϕ  −ϕ  1−π2ϕ1'3)22 Câu 48: r<=<d6e;""&UP-D;P λ R% "fAg#K5@?K"3N&kn"@73+P "-u4$f&W"&eA<A"3>kMK"C&DEi BP;F#ijA@l&.ANn>kK MjSA%WKK'32[D;P λ -/ Z'32 µ ['34 µ '37 µ \'3* µ $% 153l173+ z&M"A14 k D x a λ = H5J RK@lMS\KA‡0M3znKMj+SPKj7 A•1,K\•1\a'32⇒ H Ž '34J H '32Jk D x a λ + + = H+J hH5JKH+J>@4\1,34H\a'32J⇒\1537 hH5J⇒ ax kD λ = 1'325' − 2 1'32 µ Câu 49: @:=<ePD;3!PA.Q#&:‚# N&kZK["52mP@>e@?FD;;-D;P,@?&N Z[3&kKN&P#M•D;&:;-?&:r&NK Z5' [55 5+ \( l l k λ λ − < < Câu 50: F&<"#l>e1G +  ω HIJK&M:&<@sM`155' Ω S DE&:T&<&<@sP"@W<O-/+Z$"@WXG-/ Z++'I [++' + I 55'I \55' + I $% G1^`1++' (  !"# $%&"#'())(*)+,) B. Theo chương trình Nâng cao (10 câu, từ câu 51 đến câu 60) Câu 51: n:u@>:@O ∆ &W;&:P,'@n"=X u@&;@O ∆ K2A + n&:DQXu@&;@O ∆ K Z+'A +  [5)'A +  4''A +  \+*'''A +  Câu 52:•@KNU{#:N Z?pB [#B B \#?@ Câu 53: @?:&DE@>iP:!m&j>?#"@;MqK: ">n>k&:@lm;&:[.&:@>eKH]JMXK ">u&DQK Z q  + [ q H J  +  q  − \ q H J  − Câu 54: n:TlPADQuvK 5  ,''= &:&eT;AS5 x.>uvPADQ 5 -/uvPADQ + S&:;AS '34$"@W + -/ Z5'' [54' +4 \*4 Câu 55: F:&<"#l>eP"@W<OAB&LKMq>&L&DQK &M::%MRq14'opSDE&:T&<:%P"@W< O-/,ZRq12'opSDE&:T&<:%P"@W<O-/ Z,32Z [+34Z 734Z \+3'Z Câu 56: nN&:=Ds&N&:3&<=r&NXO&<K 2 '  5'  − = K DE&:T&<r&N@NK ' ^ , Z= π =hE&k&<=@?OK ' 3 A%E{&kDE&:T&<@NP&:;-/^ ' K Z 5'  , [ 5  2 µ  5  + \ 5  2 Câu 57 :[&M:ƒ{#PlN>?{Px ' N[.AS-"@X{ #PlNK>KmE73AkhE&k-&M3ND#@Xƒ {#PlNK>K Z ' 54 x 52 [ ' 5 x 52  ' 5 x 7 \ ' 5 x ) Câu 58: o%MvPADQMDQK+37AK'32As&M:j Kgn"=X<&;@O>&@&kXKBP; K'35+A + eKXK Z'37 ['32 '3) \'3, Câu 59: n:-"l&>&e@O ∆ &W;&:0K++48[. "=X-"l&;@O ∆ K+A + &:PX-"lK Z4234@ [,'@ 54@ \55+34@ Câu 60: n:&•@T3#i3&!{P"=)A + &;@O ∆ &W& &•KBP;-eF&••> ∆ ;P-/,@nr "O?&•&;@O ∆ P&:;K Z+7x [ ) , x 5+x \ , ) x 5' . !"# $%&"#'())(*)+,) BAÌ GIẢI CHI TIẾT MỘT SỐ CÂU ÐỀ THI TUYỂN SINH ĐẠI HỌC KHỐI A, A1 NĂM 2013 Môn thi : VẬT LÝ – Mã đề : 426 -./01232+45' 6,7 89& ;: ;&<=>?15325' 65( 9& ;: "" @AB1,5' ) 9@C@DE15' +  I chương trình Nâng cao (10 câu, từ câu 51 đến câu 60) Câu 5 1: n:u@> : @O ∆ &W;& ;: P,'@n"=X u@&;@O ∆ K2A + n& ;: DQXu@&;@O ∆ K Z+'A + 