Đề thi học sinh giỏi lớp 12 THPT Lý Thái Tổ tỉnh Bắc Ninh năm 2013 - 2014 môn lý

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Đề thi học sinh giỏi lớp 12 THPT Lý Thái Tổ tỉnh Bắc Ninh năm 2013 - 2014 môn lý

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ĐỀ THI HỌC SINH GIỎI 12 Môn: Vật Lý Thời gian làm bài: 150 phút I. PHẦN TỰ LUẬN Câu 1. (2,0 điểm) m  !"#$k"#% &'$($) *+,Hình 1a $/'01234 567F!84"#0 9. -:;<0=2;(&  &(  >=2;(?<*@'%A2346 > 3@)A$?. '-B>2"#% &*+& ! M,Hình 1b)CD M && µ .:;<#1!56F* 2 m3E2". Câu 2 (2,0 điểm).F?G2H>+I2 JK3 !L0M  + I 2 JJK ,-2 J,JK  -, = π = π + π  F 2<E NKOP.Q'7. R.>L0)*S?G+I&S+NT SINRJ.        J.QU&*?G+IQU&0D +UNRV.W1*36))IUX Y.S R S J &*)+I+A&RJ &RZ.W1 C35S R  &S J X Z.[\]&2*5)QU.W1*BQUA]?3 6)X Câu 3 ,R*- QLCH23/<+IU^0 9 .I>"# $)3/<SB3& l >#_ ! 2 &*2<*1> 3\82.:C@(E2 `La$@ B ur  2 !5 2 &E20 9.bccSB3.IG=2Cd2A5 23/<.Q$SB3E2" &c203 A2IU !4C32Q. Câu 4.,R*- e  k Hình 1a A F  k Hình 1b S  + S I U ^ B  ⊕ Sở GD và ĐT Tỉnh Bắc Ninh Trường THPT Lý Thái Tổ :0J S%LH3/<83& R, -m=l %A2 ! . f?<NRK,P J -π J NRK.B(8%L% &A#8 33AE2 !V,P J I>3YK K  ! L.Fc2035%(. Câu 5 (2,0 điểm). Q)C0 9YHCdg4 CQ &2aCd2A%>. h &A2))C#<E2 RJK. ,RKK -.= AB u c π IG=2Cd53/< &5b. R.IA2bCC234A2)+S &SIA&M R J ZK i JK RK .= =U V U V -FcC2?5)). '->'*2$5C$(A2Cdg. J.hC3254C Y RK . − =C F π bbd0CC234D* SI& RJ RK .= MB U V Fc15Cdg &6af. II. PHẦN TRẮC NGHIỆM Câu 1:S%LE23&NOZ &NRKK.b`%C G 1c/'O K Haj3.k2JK200' l"&Y K .f?<Nm J NRKP J .h*%332<0 !'O K 0a 3n'<HH*'72o2?2'0&M +.Kppq. I.KKrJq. Q.Rpq. U.KKppq. Câu 2.bsSNYTTK  !('"#$ RBP.)NRK'<8L !  K NOKP !"#> &s &3cs.k2 )C  3 !'& +.YK I.JK Q.J U.Y Câu 3. St'%A2'<8L$ !NY.F t8%L3& R l m= '%A2'<0H(cc% 6C 3G. IG=2  6 <  7   L  63  8   . f?< J J RK P i RK.g m s π = ≈ h>)  RVKKh m= 0%;6C3 &M +.JK. I.RZ. Q.RK. U.Rr. Câu 4. F)"8)) 1cMS$(/)@2H& pV3I$(/a#)d'$(c2&pJ3I.Q(/&A ) 1c'2'>'$(?4/. +.pp3I. I.pT3I. Q.rR3I U.rY3I Câu 5. u5?G2H>AB2RK3 8L$ !L0A& u + NY,ZKπt v O π - S b  K w w R L C K A B M N :0Y u I NZ,ZKπt v J Y π -.Q'>2<E&ZKP.S("/ &2*5AB!'cZ.k*3 !' V("& +.YK. I.YJ. Q.YZ. U.YO. Câu 6. S%"#$NZKBPA2D1"c3! % .B/> 1c"#'>3)Haj 3E2" 8L$ !'JV.f?<NRKP J .F=203 \652?$(6)' +.KZRq I.KOZq Q.KVq U.KYJq Câu 7. S%"#3E2"8L !o3 Rx &6&H6)&RKB.[\y&A215"#a(% ?DJA>y123456`V Y B&KR.y2;(! ?& KZ& +.OK. I.VK. Q.VV. U.VK Y . Câu 8. F!)*k R k J (2HL>3 E2 &  8L$  !L  0 2 +  NOZKπ & 2 I  N r,ZKπ-,2+ &2Ic'c' I>2<E! &ZKP'72<E.F)k R k J *3  !'R &2*5)k R k J )A?& +.KJV I.KV Q.KpV U.R Câu 9. S) gfQ f< 7  & A2)  C2 C> JKK J RKKu tV π = .hE2lf0?<fNf R N R π : &fNf J N Y π :E2 2?'2($((C 2RJK K .[1g &Q&M A. Z RK RKK  J Y C F R π − = = Ω B. Z RK  RKK YC F R π − = = Ω C. Z RK RKK  Y C F R π − = = Ω D. Z RK  RKK J C F R π − = = Ω Câu 10. Q)C#<E20 9.hC 32Q1<7 &23/<2Aa. hE2l15Q0?<Mdn(* l5 R 6)0l5 R ?l5 J .:Gl5 J 6) 0l5 J ?'2Al R X +.JA. I.RVA. Q.JVA. U. J J A . !4C32Q. Câu 4.,R* - e  k Hình 1a A F  k Hình 1b S  + S I U ^ B  ⊕ Sở GD và ĐT Tỉnh Bắc Ninh Trường THPT Lý Thái Tổ :0J S%LH3/<83& R, -m=l %A2. ĐỀ THI HỌC SINH GIỎI 12 Môn: Vật Lý Thời gian làm bài: 150 phút I. PHẦN TỰ LUẬN Câu 1. (2,0 điểm) m . điểm).F?G2H>+I2 JK3 !L0M  + I 2 JJK , - 2 J,JK  -,  = π = π + π  F 2<E NKOP.Q'7. R.>L0)*S?G+I&S+NT SINRJ. 

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