- Page No - 1 - Padasalai.Net-12th Study …€¦ · · 2013-02-064 A 0.5 s 8 A 50 mV 39. 40. m...
Transcript of - Page No - 1 - Padasalai.Net-12th Study …€¦ · · 2013-02-064 A 0.5 s 8 A 50 mV 39. 40. m...
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www.Padasalai.Net - Page No - 1
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1 : 2012 – 2013
3 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
1.
a) b)
c) d)
2. ε r = 6 d 0.3 N
a) 20 N b) 0.5 N c) 1.8 N d) 2 N. 3.
a) N2 b) H2O c) N2O d) NH3.
4.
a) A b) V m -1
c) A m d) Cm.
5. R
a) b)
c) d)
6.
a) b) 0 – 1 A
c) 0 – 10 A d) .
7.
a) b)
c) d)
8. 5 A
a) 50 A rms b) 5 A
c) 5 A rms d) .
9.
a) b)
c) d) .
10.
a) b)
c) d)
11.
a) b)
c) d)
12. µ
a) µ : 1 b) 1: µ c) µ
2 : 1 d) 1: µ
2
13.
a) b)
c) d)
14.
a) b)
c) d)
15.
a) 1.486 b) 1.658 c) 1.550 d) 1.333
16. n = 2 l = 0 , a b
a) a = b b) a = 2b c) 2a = b d) a = 3b. 17. X-
a) b) ZnS
c) NaCl d) .
www.Padasalai.Net - Page No - 2
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18. E = 3 X 104
V / m B = 2 X 10 – 3
tesla
m / s .
a) 60 b) 10.3 X 10 7
c) 1.5 X 10 7 d) 0.67 X 10
-7
19.
a) b)
c) X – d) .
20.
a) b)
c) d) .
21.
a) b)
c) d)
22. β –
a) b)
b) d)
23. 10
a) 6.93 b) 0.00693 c) 0.0693 c) 69.3 24.
a) b)
c) d)
25.
a) b)
c) d) .
26.
a) b)
c) d) .
27.
a) b)
c) d) .
28. AC DC
a) b)
c) d)
29.
a) b)
c) d) .
30.
a) b)
c) d)
II
: ( 15 X 3 = 45 )
31.
32.
33.
34. 35. 16 Ω 25 Ω.
36. 37.
38. 4 A 0.5 s 8 A 50 mV
39.
40. m th ( m + 4 )
th√5 mm √7 mm. m
41.
42.
www.Padasalai.Net - Page No - 3
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43. 1 A
o
44.
45.
46.
47.
48. ( A + B ) ( A + C ) = A + BC
49. CE
50.
III
: ( i ) 7 X 5 35
( i i )
( i i i )
51.
52.
53. 10 ohm 2.4 ohm
400 watt 30
75
54.
55. AC
56. 5000 7070 Ao
5000 Ao
57.
58.
59. 9.1 X 10 -31
kg ( 4/5) 60.
61. Ex-OR 62.
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
63.
64.
65.
66.
67. J.J.
68.
69.
70.
***** Best wishes *****
fy;tpiag; bgw;wpLf ciHj;J
mwpt[k; tsu;e;jpLk; jiHj;J
gyUk; c’ ;fisna miHj;J
je;jpLthu; k’;fs thH;j;J/
: gh/,s’ ;nfhtd. M.Sc., M.Ed., M.Phil.,
www.Padasalai.Net - Page No - 4
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- 2 : 2012 – 2013
3 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
2 μF ( a ) 0 μF ( b ) 3 / 2 μF
( c ) 6 μF ( d ) 2 / 3 μF a A, B, C D +q, +q, -q -q
O
( a ) q / 4πε0 a ( b )2q / 4πε0 a ( c ) 4q / 4πε0 a ( d ) 0
( a ) C 2 N
- 1 m
- 2( b ) N
m
2 C
- 2
( c ) H m - 1
( d ) N C
- 2 m
- 2
σ
( a ) σ / 2 ε0 ( b ) - σ / 2 ε0
( c ) σ / ε0 ( d )
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) AC ( b ) DC
( c ) AC DC ( d ) DC AC
As-1
( a ) 0.06 H ( b ) 0.6 H ( c ) 6 H ( d ) 60 H
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d ) X
( a ) 57.7o ( b ) 32.5o ( c ) 90o ( d ) 115o
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) 1 : ½ : 1/3 ( b ) 1 : 2 : 3 ( c ) 1 : 4 : 9 ( d ) 1 : 8 : 27
www.Padasalai.Net - Page No - 5
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V X
( a ) 6 X 10 18 Hz ( b ) 6 X 10 8 Hz ( c ) 9 X 10 18 Hz ( d ) 9 X 10 8 Hz
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) 9 X 1016 J ( b ) 9 X 1024 J
( c ) 1 J ( d ) 3 X 108 J
13 Al 27
( a ) 3.9 X 10 -15 m ( b ) 2.6 X 10 -15 m ( c ) 3.9 X 10 -13 m ( d ) 2.6 X 10 -13 m
( a ) ( b )
( c ) ( d )
( a ) 200 eV ( b ) 200 keV( c ) 200 GeV ( d ) 200 MeV
( a ) 15 P 31 ( b ) 15 P 32
( c ) 11 Na 23 ( d ) 11 Na 24
( a ) ( b )
( c ) ( d )
( A + AB )
( a ) A ( b ) B ( c ) AB ( d ) Ā
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
( a ) ( b )
( c ) ( d )
II
: ( 15 X 3 = 45 )
2 X 10-5 T
√3
www.Padasalai.Net - Page No - 6
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Po 218
CE 3 k Ω 6 V. α 0.97
III
: ( i ) 7 X 5 35
( i i )
( i i i )
3333 Ao 0.6 eV
6C12
6C13 7.68 MeV 7.47 MeV
6C13
3 Li 6 + 0 n1 →
2 He 4 + 1 H 3
3 Li 6 = 6.015126 amu, 2 He 4 = 4.002604 amu
1 H 3 = 3.016049 amu 0 n1 = 1.008665 amu
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
****** Best wishes ******
,aw;if md;id tH’;fpl;l mz;lkpjd;
,ay;ghd jd;ik kG’ ;fhky; mDjpdKk;
,ad;kzk; fkH;jy; ntz;Lbkd mHfhf
,ak;g[jy; ntz;Lk; ,’ ;Fs;s midtUf;Fk;.
jahupg;g[ > gh.,s’ ;nfhtd;. M.Sc., M.Ed., M.Phil.,
www.Padasalai.Net - Page No - 7
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3 : 2012 – 2013
3 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
a) 10 9 V b) 10 8 V c) 10 7 V d) 10 6 V
a) b) c) a b d)
σ
a) σ / 2εo b) - σ / 2εo c) σ / εo d) - σ / εo
a) 1.129 X 10 11 b) 2.258 X 10 11 c) 1.129 X 10 5 d) 3.387 X 10 11
2 +60 C
a) 0.5 A b) 1 A c) 0.1 A d) 10 A
a) b) c) d)
G S
Ra
a) G S b) S Ra G
c) Ra G , S d) S G , Ra .
5 A.
a) 0.7 A b) 1 A c) 7.07 A d) 70.7 A AC
a) π / 2 b) π / 4 c) π d) 0
a) V s A - 1 b) Wb A - 1 c) Ω s d)
a) b) c) d)
a) 0 b) π / 4 c) π / 2 d) π
a) b) c) d)
a) 8590 Ao & 8596 Ao b) 5893 Ao & 5896 Ao c) 5890 Ao & 8596 Ao d) 5896 Ao & 5890 Ao
a) 14 X 10 6 K b) 14 X 10 7 K c) 600 K d) 6000 K
a) b) c) d)
X-
a) b)
c) d)
a) b) c) d)
M L
a) Kα b) Lβ c) Mα d) Lα 3 X 10 14 Hz
a) 1.98 X 10 -19 J b) 1.98 X 10 -20 J c) 2.2 X 10 -20 J d) 2.2 X 10 -19 J
a) b)
c) d)
a) 1 : 10 40 b) 10 10 : 1 c) 10 40 : 1 d) 1 : 10 10
a) 5570 b) 13 c) 10.1 d) 3
www.Padasalai.Net - Page No - 8
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0.5 eV 10 eV
a) b) c) d)
BE / A )
a) Cu b) Ag c) Au d) Fe
a) b) c) d)
a) 0.7 eV b) 0.4 eV c) 0.3 eV d) 1.1 eV PN
a) b) c) d)
a) b) c) d)
a)
b)
c)
d)
II
: ( 15 X 3 = 45 )
30o
2 µF 100 V
92 U 238 3α 2 β
( Ā + B ) ( A + B ) = B
III
: ( i ) 7 X 5 35
( i i )
( i i i )
20oC 50 ohm 70oC 5 ohm.
www.Padasalai.Net - Page No - 9
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80 %. 4 kW ,100 V
240 V
80V, 10A DC 100 V, 50 Hz
10A
n
2.5 X 10 - 4 s v = 0.73 C
N = No e –λt
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
AC
****** Best wishes ******
mfpyk; nghw;Wk; cj;jku; nghjid
mfpk;iriag; nghd;W vJt[kpy;iy.
fyfk; ,y;yhj ghujk; cUthf
xw;Wikiaj; jtpu ntW vJt[kpy;iy.
Mf;fpnahd; : gh.,s’;nfhtd;. M.Sc., M.Ed., M.Phil., (jkpHf muR lhf;lu; ,uhjhfpU\;zd;
ey;yhrpupau; tpUJ - 2011 bgw;wtu;)
631501
www.Padasalai.Net - Page No - 10
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4 : 2012 - 2013
3 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
p E
a) pE cosθ b) pE sinθ c) pE d) pE cosθ sinθ
a) b)
c) d)
1 500 µC
a) 500 X 10 – 6 eV b) 500 X 10 – 6 MeV c) 500 X 10 – 6 J d) 5 X 10 – 6 J
1 10 V
a) 10 NC-1 b) 0.1 NC-1 c) 100 NC-1 d) 1000 NC-1
a) b) c) d)
a) b)
c) d)
20oC 270oC
a) 520oC b) 540oC c) 500oC d) 510oC
AC
a) 600 b) 900 c) 1200 d) 1800
AC
a ) ( b )
( c ) ( d )
a) b) c) AC d)
0.5 m2 10 0.2 wb m -2
a) 100 wb b) 10 wb c) 1 wb d)
a) b) c) d)
900
a) b) c ) d )
0.005 m 2500 6000 A o
a) 3 b) 2 c) 1 d) 4
a) b)
c) d)
a) b) c) d) .
a) b) c) d)
a) 13.6 eV b) 10.2 eV c) 3.4 eV d) 1.89 eV
a) 1000 mm b) 10 mm c) 100 mm d) 1 mm
a) b) c) d)
www.Padasalai.Net - Page No - 11
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a) b) c) d)
a) 600 b) 900 c) 1200 d) 1800
a) b) c) d)
0.06 amu
a) 27.93 MeV b) 27.93 eV c) 55.86 eV d) 55.86 MeV
10.1
a) 5.05 b) 7.00031 c) 10.1 / 0.6931 d) 20.2
a) 1.1 eV b) 0 eV c) 1.52 eV d) 0.7 eV
V = …………..
a) - ( Rf / R )V b) - ( Rf X R )V c) - ( Rf X R ) / V d) ( Rf / R )V
a) b) c) d)
RF
a) b)
c) d)
600 kHz
a) 455 kHz b) 1055 kHz c) 600 kHz d) 545 kHz
II
: ( 15 X 3 = 45 )
0 C 4 / C 100 C
720 kmph
3 X 10 -5 tesla
rms
60 cc 300 mm 90
600
84Po218 3 15
100
200
FAX ?
www.Padasalai.Net - Page No - 12
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III
: ( i ) 7 X 5 35
( i i )
( i i i )
3m 4000 8 X 10 -3 T
10 cm 5 m
3.6 X 10 – 4 N
30 cm 5 4 A
4 X 10 - 5 T
X-
3333 A0 0.6 eV
OR
AM
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
AC
n -
########## Best wishes ##########
xd;Wgl;lhy; cz;L thH;t[
vd;W brhd;dtu; ek; ghujpahu;.
md;W brhd;d mt;thrfk; tHpna
epd;W ek; ghujj;ijf; fhg;nghk;.
cUthf;fpatu; : gh.,s’;nfhtd;. M.Sc., M.Ed., M.Phil., (jkpHf muR lhf;lu; ,uhjhfpU\;zd;
ey;yhrpupau; tpUJ - 2011 bgw;wtu;) KJfiyg; gl;ljhup Mrpupau;(,aw;gpay;)/
gr;irag;gd; nkdpiyg; gs;sp.
fh";rpg[uk; 631501
www.Padasalai.Net - Page No - 13
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5 : 2012 – 2013
3 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
1. 500 μC a) b)
c) d)
2.
a) b)
c) d)
3. F
a) 6 F b) F / 6 c) 6 / F d) 0 4.
a) b)
c) d)
5. 2 Ω
a) 2 Ω b) 4 Ω c) 1 Ω d) 0.5 Ω.
6.
a) b) G
c) d) G
7.
a) b)
c) d) .
8.
a) ½ CV2 b) Q
2 / 2C
c) LIo2
d) ½ LIo2
9. AC
a)
b)
c) b) rms √ 2 .
10.
a) b)
c) d) .
11.
a) b)
c) d)
12.
a) 72o, 118
o b) 108
o, 78
o
c) 108o, 72
o d) 0
o, 180
o
13.
a) b)
c) d)
14.
a) 16 b) 16
c) 256 d) 256
15.
a) b)
c) d)
16.
a) b)
c) d)
www.Padasalai.Net - Page No - 14
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17.
a) 2 → 1 b) 4 → 1 c) 6 → 5 d) 5 → 2.
18.
a) 0.53 m b) 0.53 mm c) 0.53 A
o d) 13.6 eV
19.
a) b)
c) d)
20.
a) b)
c) d)
21. 2 X 10 14
Hz
a) 13.2 X 10 -24
J b) 13.2 X 10 24
J c) 3.3 X 10
-38 J d)
22.
a) 100 R b) 250 mR
b) 600 R d) 250 R .
23.
a) b)
c) c)
24.
a) 200 eV b) 200 MeV c) 200 meV d) 200 GeV
25.
a) 0 eV – 10 eV b) 100 eV – 1000 eV c) 0.5 MeV – 10 MeV d) 0.5 eV – 10 eV
26. Rf = 22 kΩ , Rin = 10 kΩ,
a) 2.2 b) 3.2 c) 2.3 d) 1 27.
a) b)
c) d)
28. NOT
a) b)
c) d)
29.
a) b)
c) d)
30. 50
a) b)
c) d) 50 Hz
II
: ( 15 X 3 = 45 )
31.
32.
33.
34.
35. 200 mA 10 20
( e = 1.6x10-19
C). 36. 37.
38. DC AC
39. 3
40.
41.
www.Padasalai.Net - Page No - 15
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42.
43.
44.
45. 6 C 12 6 C 13 7.68 MeV 7.47 MeV
6 C 13
46.
47.
48. OR
49.
50.
III
: ( i ) 7 X 5 35
( i i )
( i i i )
51.
52.
53. 10 Ω 51.8 cm 108 cm 0.2 mm
54.
55. 800 KHz 1200 KHz LC
200 μH
80 V, 10 A d.c 100 V, 50 Hz
10 A 56.
57.
58.
59. 1.24 eV 4.36 X 10 -7 m
60.
61.
62.
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
63.
64.
65.
66. n -
67.
68.
69. CE
70.
***** Best wishes *****
gapd;wijr; nrhjpf;fnt nju;t[ ; mjdhy;
gapd;wtUf;F Vw;glhJ kdr;nrhu;t[/
cUthf;fk;: gh.,s’ ;nfhtd;. M.Sc., M.Ed., M.Phil., (jkpHf muR lhf;lu; ,uhjhfpU\;zd;
ey;yhrpupau; tpUJ - 2011 bgw;wtu;)
www.Padasalai.Net - Page No - 16
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6 : 2012– 2013
3 150
I
: ( i ) 30 X 1 30
( i i )
( i i i )
2 m 400 V /m 100 V /m
( a ) 50 cm ( b ) 4 cm ( c ) 4 m ( d ) 1.5 m
( a ) ( b )
( c ) ( d )
4 X 10 -10
m a ) 12.8 X 10 -29 Cm ( b ) 3.2 X 10 -29 Cm
( c ) 1.6 X 10 -19 Cm ( d ) 6.4 X 10 -29 Cm x
a ) 1 / x2 ( b ) 1 / x3
( c ) 1 / x4 (d ) 1 / x 3/2
a ) mV-1s-1 ( b ) m3V-1s-1
( c ) m2V-1s-1 ( d ) m2V-1s-2
30o 90o
a ) 30o ( b ) 60o
( c ) 90o ( d ) 0o
a ) ( b )
( c ) ( d )
a ) b )
c ) R d )
6 µF 100 V
a ) 30 J ( b ) 3 J
( c ) 0.03 J ( d ) 0.06 J311 V rms
a ) 110 V b ) 220 V
c ) 50 V d ) 70.7 V
a ) ( b )
c ) d )
( a ) h = 6.6 X 10-19 Js ( b ) h = 6.6 X 10-23 Js ( c ) h = 6.6 X 10-31 Js ( d ) h = 6.6 X 10-34 Js
a ) ( b )
( c ) ( d )
a ) b )
c ) d )
( a ) ( b )
( c ) ( d )
d - X-
a ) d ( b ) d / 2
( c ) 2d ( d ) 4d
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( a ) 13.6 eV ( b ) 13.6 V ( c ) 3.4 eV ( d ) 3.4 V
64.08 X 10 -20 C
( a ) 2 ( b ) 5 ( c ) 1 ( d ) 4
( a ) ( b )
( c ) ( d )
E
( a ) λ = h / ( 2mE ) ½ ( b ) λ = ( 2mE )
½ / h
( c ) λ = h ( 2mE ) ½ ( d ) λ = h / E ( 2m )
½ .
( a ) ( b )
( c ) ( d )
T τ a ) T = 0.6931 τ ( b ) T = 2 τ
( c ) τ = 0.6931 T ( d ) τ = 2 T
( a ) ( b )
( c ) ( c )
( a ) 200 eV ( b ) 200 MeV ( c ) 200 meV ( d ) 200 GeV
a ) 15 P 31 ( b ) 15 P 32
( c ) 26 Fe 59 ( d ) 11 Na 24
a ) ( b )
( c ) ( d )
AVO
( a ) ( b )
( c ) ( d )
( a ) AND ( b ) OR ( c ) NAND ( d ) NOT
( a ) ( b )
( c ) ( c )
( a ) 360 km ( b ) 3600 km ( c ) 36000 km ( d ) 36000 m
II
: ( 15 X 3 = 45 )
2 0.4 70 Ω
AF RF
0.5 4 A 8 A
50 mV
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NPN PNP 50 μA 25 mA α β
( OP-AMP )
Y = AB + ĀC. (i) A =1,B=1,C=0 (ii) A=0,B=1,C=1 (iii) A=0,B=1,C=0 (Y)
III
: ( i ) 51 7 X 5 35
( i i ) 11 6
( i i i )
5mm 2 X 10 -10
C -2 X 10 -10
C 10 Vm-1
60o( i )
( ii )
100 Ω 1 Ω
C14 1 / 8 )
6 C 14 = 5560
IV
: ( i ) ( 4 X 10 = 40 )
( i i )
N = No e – λ t
: gh/,s’ ;nfhtd;/
(jkpHf muR lhf;lu; ,uhjhfpU\;zd; ey;yhrpupau; tpUJ - 2011 bgw;wtu;) KJfiyg; gl;ljhup Mrpupau;(,aw;gpay;).
gr;irag;gd; nkdpiyg; gs;sp.
fh";rpg[uk; 631501
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