Gv : Nguyễn Văn Tươi Luyện thi – Sóng ánh sáng Trang 1
Chương VI :SĨNG ÁNH SÁNG
A.Lý Thuyết.
1. !"#$%
#
&'( )*# +,-. /0#1.
2. ,#2#$3#$##45(6#78!#9:;<=>
4?#9#;#2#$3#$;6;3@
&A" );6BC#94%:C#9C!D45(4!
+;64?# /#<"
3.'3#$4=3#$!B2#$#$4C!@
&'3#$(D0#5)'3#$?%(
+'3#$##;EF=/'3#$945(
4. #G4="#;#!#GH?"#I@
&?"#I;6IJ.DK
)?"#IIJ#$4JDK
+?"#I"L.#C#$#$JG8#
/?"#IM("N;3!O;8#";#CP!
5.+#9Q(RC!4S=!!;EDH?>4%;3
DCK<JH?"#I 09474#DQ(4JT4S5#0#!
:H?"#I!##$
A. #.8#U. B. #.(U.
C. #.8#U; D. #.U.
6.'#V5E4%WI#$:;9MXCD<Y6#$##9Z
[I234=D#V5E@
A. ,<A4=" B. 'I.";3<
C. F6;3 D. \HJ8
7.]C#B4=";64-;#!#G#K.#@
A. '#K.#!8N58D4NB. '#K.#!K
C. +5B7#!B#K.#D. '#K.#4%Q4B;6J86<
8. #G;#$4B4%H?.I"^

C. ?D'7#4%# "H?..
D. ?D'7#4%# "H?"#I
12.,ED8Y2DH?4%4.#
A. H=D;3J#IB. #4#B<D;3J#I
C. .#J4#BI3D;3J#ID. #4#BMD;3J#I
13.)W.c.#"CW.4#$R
A. +!C!N5C!D#B. +!85#CW.K.#
C. +!8"5#:D. +!C!"5C!DCW.3
14.?DJC!4S=!;#!:>
A. f;##$4JAg!4DC<
B. +#$R4N493;65
C. hR"R#$49J#$4J4!#4Di
D. j;64?#
Gv : Nguyễn Văn Tươi Luyện thi – Sóng ánh sáng Trang 2
15.+T=C#Bkhông đúng
A. j#$%(WN!#GW.
B. j#$%#WN!3!
C. j#$%H4#$WN!3.
D. f2#1.""%c!8;J"g
16.]C#B#4="#@
&'#K.#!C<"!4#$R
)hM!X#$4JO#K.#0#$4JDMkll
l
+#C(4;<
;#9
+'#K.#;33P#":K
/'#K.#U#Q;<;#98D#K.#N58D4N
17.+#C!4S4#$m%#48n#8Q#9JCW7:
&!BH4%J$=#
);6H4%=#:R#K2#4J"M;6C#7"!;9%

q
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s
;
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A. ,
q
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p
6
s

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H6
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 B. ,
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s
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21.j#$%J.H?.X.8#H?I4%T#"^
&2( )2#1.
+24<.H? /2#45(
22.+T= sai^
&n+#9D""A;348##45(;:;
)n_45("!C!4
+n_("M%6845(;!C#9#"#IR4N493
/n+#9D"A;348##3"N
23.]C#B4=sai;#!#GID#V5E^
&n'#V5E!;<A4=
)n'#V5EI.";3<"HJ8
+n'#V5E;6!;<A#;3/n'#V5E!I#"u
24.,#JQ45(GR;6;3d#:^
&n'8AC!#<)n'8#<C!A
+n'8;64?#C!A/n'8;64?#C!#<
25.'3#$G#WN4%^
&n_"!+n_!BCP(
)n_"!4#$R/n_!C<!
26.+T=#;#!#G##;Ev^
&nh==H4%"=)nj#K45(<#"#K;9%
+n,<##K<#N#;<R#K#
/n09JKCW.
b
λ
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a
λ
:4%#$8=#

+#$%#DYX;#5
/;#5<.T#45(Q(
35.09Q#48Y2DH?"C!4S=!!:H?
4%CK<J".#
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Gv : Nguyn Vn Ti Luyn thi Súng ỏnh sỏng Trang 5
20.Trong thí nghiệm giao thoa ánh sáng với hai bớc sóng
1
= 0,6àm và
2
. Trên màn ảnh ngời ta thấy vân tối thứ 5 của hệ
vân ứng với
1
trùng với vân sáng thứ 5 của hệ vân ứng với
2
. Tính
2
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m
à
)lk

C.0,50
m
à
D.0,58
m
à
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