S GIO DC & O TO THI BèNH
TRNG THPT NGUYN DU
THI TH I HC KHI A+A1 THNG 3 -2014
Mụn: VT Lí
Thi gian lm bi: 90phỳt; gm 50 trc nghim

Mó thi 209
Cõu 1:
A. !"!#$%&'()
B. *+*,$$-./0$1+2$+
C. 345-64%7$-./0
D. *+*%*
Cõu 2:389:";.<=0"!,>&
?
@
ABC


+=
tu
A
B"?$D
E.<+F)"(,E.</0
A. G@" B. )A" C. AH" D. F)"
Cõu 3:I"5<52J<EHK68L=")).<"M'N*64
8O"7"P.<+
F
FG ( Qb


R7<$STC$U(VW5-X26

4:"5<5
A. ))GY B. AAGY C.
))G )V
D.
FFG )V
Cõu 4:I;.<=XE89$8Z$!,>$*E$;.<
+A"$D<E.<+AB"(?W["\"I.<$59"4)H",#X<I
+*+*+2$9"E
B) F?
)
k


= +
$%]GF)'/,E^8ZE5-
%ON))_)@_
A. F)" B. FA" C. H" D. F@"
Cõu 5:'44\"9$=E%;5H""K,+*`
'8HG_'<E"K,+AG"(a9$E\"$/
64+
A. SS\" B. S)\" C. SG\" D. SF\"
Cõu 6:bX:"*,#LX$"55>M+
F
]FA$X1:"*
,#L$"*,#LX+
)F
]FCYD:55>ME"*,#L+
A. )@HFG
H
"( B. FTcFG

H
"( C. ))cFG
H
"( D. FASFG
H
"(
Cõu 7:I+M+UJ="$Dd%+,;AGG+UJ%+,;%*5%\$ELFGGe("
b+MU!,>X<f
)
]FGg:+ME%&+
A. GH B. G@ C. G) D. GA
Cõu 8: Chọn câu Đúng. Trong điện từ trờng, các vectơ cờng độ điện trờng và vectơ cảm ứng từ luôn:
A. cùng phơng, cùng chiều. B. cùng phơng, ngợc chiều.
C. có phơng vuông góc với nhau. D. có phơng lệch nhau góc 45
0
.
Cõu 9:I$DE2La$D$++
F
F@
J
@AG
$
))
=+
BJ"h$"(?0+V]G$D
7$-J]9(),$$-./0i,>&:$D+
A.
?"?BS()BHJ
+=
B.

?"?BS()BAJ
+=
C.
?"?BS(ABAJ
+=
D.
?"?BS()BAJ
=
Cõu 10:I$DU$,>&J]FGAB

)
j
F
F@
?B"?b%&:$D
A. ']FB? B. ']GCB? C. ']CB? D. '])B?
Cõu 11:3K\":7 +k+
A. 2"55:$D"l$/,E+:7 +k
B. k$8X4:=5
C. %*k$2:=5
D. %*k$8X4:=5
Cõu 12:I$D62=#AU`,>$`8E5,>&
'F(AjIm)Gc
J
F
]SBπnπ?"hJ
)
]SπB"?hJ
S 
])Bπnπ?"hJ

A
])πB"?m<J5-,>&
 ;:$D
A.
( )
J C   "
)
π
 
= π +
 ÷
 
B.
( )
J C  "
)
π
 
= π +
 ÷
 
C.
( )
J C )   "
A
π
 
= π +
 ÷
 

D.
( )
J C   "
A
π
 
= π −
 ÷
 
Câu 13:b"=J< -e"M$="2l8R&U27RE5-
2ko
F
]S9e"Mkb$=&,;U2E,#2ko
)
]A9e"MR$b
="M$=&U27"4E5-2k+
A. F9 B. )A9 C. C9 D. T9
Câu 14:IU2E/\L
( )
)
A FGGi t A
π
=
7"2l
AGR
= Ω
W5-*X/&:
U2"%&
A. F)GQ B. F@GQ C. )AGQ D. S)GQ
Câu 15:b"4"42Rb]GC(πb]FG

jA
(πpR< ,;3K$8
4"4"22 -E/\L]q
G
FGGπ3\*Xk:4"4464
&R/0/^
A. R]CGΩ B. R]FGGΩ C. R]TCΩ D. R]G
Câu 16: M¹ch dao ®éng ®iÖn tõ ®iÒu hoµ LC gåm tô ®iÖn C = 30nF vµ cuén c¶m L =25mH. N¹p ®iÖn cho tô ®iÖn
®Õn hiÖu ®iÖn thÕ 4,8V råi cho tô phãng ®iÖn qua cuén c¶m, cêng ®é dßng ®iÖn hiÖu dông trong m¹ch lµ
A. I = 4,28mA. B. I = 6,34mA. C. I = 3,72mA. D. I = 5,20mA.
Câu 17: Khi m¾c tô ®iÖn cã ®iÖn dung C
1
víi cuén c¶m O"L th× m¹ch thu ®îc sãng cã bíc sãng r
1
= 60m; khi
m¾c tô ®iÖn cã ®iÖn dung C
2
víi cuén O"L th× m¹ch thu ®îc sãng cã bíc sãng r
2
= 80m. Khi m¾c song song 2C
1
vµ
3C
2
=E[víi cuén O"L th× m¹ch thu ®îc sãng cã bíc sãng lµ:
A. r = 100m. B. r = 162,5 m. C. r = 170,7 m. D. r = 240,5 m.
Câu 18:I4J<Rb"M3K$8"4"25J<E8/ ,;
s8"4+)C_&25k8kX)+8252k8.<W5-
8U2\*X"464
A. )C_ B.

CG )Hz
C. CG_ D.
)C )Hz
Câu 19:I5</+t,l=">XEc@G$ULXEF)G$U$OksK
$8>X222k)GGY&,#U22k7LX+)9
222kl8LX$,#U22k7>X+8+,;E5-
.<^
A. )CYhF@9 B. )CYhG)C9 C. F@GGYhG)C9 D. F@GGYhH9
Câu 20:X\"U`/`JX5NY'bbX\"LXE%&'
F

X\"LE%&'
)
])'
F
s:X\"LX/0u64:E+88
&1%O5$-./0:X\"LX$X\"LJXJ1/0
A. F B.
)
 C.
S
D.
F
S

Câu 21:bU2J<E,>&
( ) ( )
) FGG ( Ai t A
π π
= +

W5-#\"8U2
"4E+/0
S A

A. C(F)GG B. T(@GG C. T(F)GG D. C(@GG
Câu 22:I+M>="7O8d%+,;",;!$"8;.<""v%*m
@A"b+MU4>E,#X<]f
)
B"(
)
?b%&:+M
+
A. ) B. GC C. F@ D. F
Câu 23:b4"4Rb"M3258"4
( ) ( )
CG )  FGGu c t V
π
=
&2k8
.<$k+SGY$@GYb*X"4+)GQW5-^
A.
GA (L
π
=
B.
GS (L
π
=
C.
G@ (L

π
=
D.
G) (L
π
=
Câu 24:'2"o.$55>M%O5a%!5+F)""%O
5N%!"75+F)"/,E55+GC
m
µ
W[\"I$eBl`$
w?E4+8+,;+J
I
]A""$J
e
]c""x$.5%OaI$eB%*Ie?E
A. FG$.5 B. c$.5 C. I5-%5 D. FF$.5
 ')(AjIm)Gc
Cõu 25:I$DU/0%$DE+J
F
]@"&$D:E+$
F
]HG"(h%$DE
+J
)
]C
S
B"?&$D:E+$
)
]CGB"(?'8E$/:$D+

A. ]H
)
B(?h9]SFAB"? B. ]FGB(?h9]FGB"?
C. ]FGB(?h9]SFHB"? D. ]FGB(?h9]CB"?
Cõu 26:I4k5."E8.">/O+Z]A)GB_?I,#E\!,;."E8
X+FHGGGB_?'8."X",#<!,;kk<5+
A. FTGGGB_? B. FT@AGB_? C. FTHCGB_? D. FHGGGB_?
Cõu 27: Một mạch dao động gồm tụ điện C = 0,5yF và cuộn dây L = 5mH, điện trở thuần của cuộn dây là R = 0,1z.
Để duy trì dao động trong mạch với hiệu điện thế cực đại trên tụ là 5V ta phải cung cấp cho mạch một công suất là
bao nhiêu?
A. P = 0,125mW. B. P = 125W. C. P = 0,125W. D. P = 0,125yW.
Cõu 28:IE><";.<=Xi,>&E4"\".<
]AB)Gj
J
S

?B""?YJ/0"!/0.<'<E;.<E5-
A. @G""( B. SG""( C. @G"( D. @G"(
Cõu 29:b+8+,;5/LJ4E8Z)ZSZ$:/72&$D/864:
+!72+8+,;+$S$%$W5-5-%
A.
FT
B.
T
C.
FS
D.
FG

Cõu 30:b:"/7 ,;:"+bJE*5+Fc!Yb,;5/l

"`"55>ME/,E
GC@ m
à
=
g`"M5"`"v5!+!7
2$,E$"N,#E
B
ur
$*E$$D:!+!$]@FFG
jC
'W5-/5
%:7{45!+!N,#
A. SF" g@A" B. CS"
C. A)"
Cõu 31:\"90"`",#|7"=."$l$=."
"L,#."49$4\":9+8+,;+CG$AAIL,#."4+
A. SH B. S@ C. )H D. AT
Cõu 32: I42J<"M =".<$k3K$8"4"J<
( ) ( )
F@G ) FGGu c t V

=
&2k8.<$k+F)GY$)GGYW5-2*X:
"4
A. GH B. GC C. GTC D. G@
Cõu 33:b+M+UJK0"="$DKE%+,;CGG$"+UJvELFGGe("
U'75&:+UJ/N))"SG"b>}:+M+
A. GA~ B. HG~ C. GF@~ D. GGH~
Cõu 34:'2"o.$55>M%O5a%!5+)""%O5
N%!"75+)"/,E55+G@

m
à
W[\"I$eBl$w?E
4+8+,;+J
I
]S@""$J
e
]jCA""x$.%OaI$eB%*Ie?E
A. I5-%5 B. FA$. C. FC$. D. FS$.
Cõu 35:'"5<52J</EU2645.<8L+
G
I
%U
2LX.<8L/0GB
F
Gi
=
?&U2U+4E5-
A.
) S G
i i I= =
B.
) S
Gi i= =
C.
) G S G
( )h ( )i I i I
= =
D.
) G S G

S ( )h S ( )i I i I
= =
Cõu 36: Mạch chọn sóng của máy thu vô tuyến điện gồm tụ điện C = 880pF và cuộn cảm L = 20yH. Bớc sóng điện
từ mà mạch thu đợc là
A. r = 150m. B. r = 250m. C. r = 100m. D. r = 500m.
Cõu 37:3K"25J<E5-2k$8%* +8+,;$82l8R
O"8E6O"k2E2b&,#U22k7"4,>L+
G)C9hGC9hG)9eK25J<<$84"4="/8u"M&
,#U22k7"4+
A. G)9 B. GFC9 C. GGC9 D. GS9
Cõu 38:I;.<=GT"E"868%$"5."$8HG_
YD<E.<+S)"(.<EEN'/EE<&.<
A. C B. S C. @ D. A
'S(AjIm)Gc
Câu 39:I+}%EE79]@
G
X:+}%$d+

]F@AAA$$
"+

]F@HC)b5M"K/:+}%,EdE+2a+E"d$
+E""
A. GGGFF B. GGGAS C. GGGCC D. GGG)C
Câu 40:b.O+#đúngI==7O+M4<V#"KXl2FT
G
b3,==+
1VE]@AG"&==$•1V#2l.<!+M€]AFG
jC
s

jF
X</5
%5XR]@AGG%"e21V+
A. T
G
b B. FCC
G
b C. FAC
G
b D. F)
G
b
Câu 41:I+M+UJU$,>&JF)BCGf()?"•m,#$D,;
%O#f(F)B?%\N#\"+BG?
A. cG" B. CA" C. @" D. FG)"
Câu 42:I+M+UJ="$DE%+,;"$+UJEL%%* e%
+,;"])GG&%&:+M+)3\%&+M+F&%+,;"/0
A. )GG B. CG C. FGG D. HGG
Câu 43:2X:"75&<O$22,+,#.<O)%Y+HC‚b*X
<O%* d22,+,#.</0/\2X<O+cC‚
A. A%Y B. S%Y C. @%Y D.
) SkV
Câu 44:'&"5/\sai $=4
A. '=40"$`55%O%/,E:=4>/,E:5d
B. '=4E/OX+E2N
C. YDEl2X15=4e2:$DCGG

b"/M855
5%O%
D. '=4%-5+"&X<"=

Câu 45:b:/72+"/0$*Z"/*5:!+!$$*Z"+T)FG
jFc
~b
$55E/,E
GFH m
λ µ
=
YD/864:!+!%/L%d*+
A. )HHFG
C
"( B. FHAFG
C
"( C. cFHFG
C
"( D. S@HFG
C
"(
Câu 46:b55E/,E
GSC m
λ µ
=
$%"+4E*5)AH!Y:"/72
*X+SQ$,#U72/mU+o
/
]GG)9'2X+,;u
A. )S@‚ B. S)H‚ C. CSH‚ D. )cH‚
Câu 47:ƒ"K5:"X+dE=E%;9$5)G"!,>
|L$,>&
9
])AGπ$


])BAGπnπ?B
9
$
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$/644I+
A. Fc B. )G C. FT D. FH
Câu 48:22J<a8"42+]))G
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BFGGπnπ(@?B9?b*Xk:4"4/0/^
A. HHGQB. AAGQ C. ))GQD. ,\,;$&,/R
Câu 49:IM$8"4Lk2E
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π π
= −
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B.
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C. )A9 D. F)9
Câu 50:e6:""5<52J<"$84"49="2l8R
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$U(V&,#U22k4"4+F9 s*:"5<7<$S
$U(V&,#U22k4"4+
S
9e*:"5<7<$)
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