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 Page 1


Q u e s t i o n 	 1
L i g h t 	 o f 	 w a v e l e n g t h 	 ?
A
	 a n d 	 ?
B
	 f a l l s 	 o n 	 t w o 	 i d e n t i c a l 	 m e t a l 	 p l a t e s 	 A 	 a n d
B 	 r e s p e c t i v e l y . 	 T h e 	 m a x i m u m 	 k i n e t i c 	 e n e r g y 	 o f 	 p h o t o e l e c t r o n s 	 i s 	 K
A
	 a n d
K
B
	 r e s p e c t i v e l y , 	 t h e n 	 w h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 r e l a t i o n s 	 i s 	 t r u e
( ?
A
= 2 ?
B
)
O p t i o n s :
A . 	 K
A
<
K
B
2
B . 	 2 K
A
'
= K
B
C . 	 K
A
= 2 K
B
D . 	 K
A
> 2 K
B
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 2
W h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 c u r v e s 	 r e p r e s e n t s 	 t h e 	 v a r i a t i o n 	 o f 	 i m p e d a n c e
( Z ) 	 w i t h 	 f r e q u e n c y 	 f 	 i n 	 s e r i e s 	 L C R 	 c i r c u i t ?
O p t i o n s :
A .
B .
VITEEE Paper - 2023
Physics
Page 2


Q u e s t i o n 	 1
L i g h t 	 o f 	 w a v e l e n g t h 	 ?
A
	 a n d 	 ?
B
	 f a l l s 	 o n 	 t w o 	 i d e n t i c a l 	 m e t a l 	 p l a t e s 	 A 	 a n d
B 	 r e s p e c t i v e l y . 	 T h e 	 m a x i m u m 	 k i n e t i c 	 e n e r g y 	 o f 	 p h o t o e l e c t r o n s 	 i s 	 K
A
	 a n d
K
B
	 r e s p e c t i v e l y , 	 t h e n 	 w h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 r e l a t i o n s 	 i s 	 t r u e
( ?
A
= 2 ?
B
)
O p t i o n s :
A . 	 K
A
<
K
B
2
B . 	 2 K
A
'
= K
B
C . 	 K
A
= 2 K
B
D . 	 K
A
> 2 K
B
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 2
W h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 c u r v e s 	 r e p r e s e n t s 	 t h e 	 v a r i a t i o n 	 o f 	 i m p e d a n c e
( Z ) 	 w i t h 	 f r e q u e n c y 	 f 	 i n 	 s e r i e s 	 L C R 	 c i r c u i t ?
O p t i o n s :
A .
B .
VITEEE Paper - 2023
Physics
C .
D .
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 3
A 	 C a r n o t 	 e n g i n e 	 t a k e s 	 3 × 1 0
6
	 c a l . 	 o f 	 h e a t 	 f r o m 	 a 	 r e s e r v o i r 	 a t 	 6 2 7
°
C , 	 a n d
g i v e s 	 i t 	 t o 	 a 	 s i n k 	 a t 	 2 7
°
C . 	 T h e 	 w o r k 	 d o n e 	 b y 	 t h e 	 e n g i n e 	 i s
O p t i o n s :
A . 	 4 . 2 × 1 0
6
J
B . 	 8 . 4 × 1 0
6
J
C . 	 1 6 . 8 × 1 0
6
J
D . 	 z e r o
A n s w e r : 	 B
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 4
A n 	 e l e m e n t 	 o f 	 0 . 0 5 i m 	 i s 	 p l a c e d 	 a t 	 t h e 	 o r i g i n 	 a s 	 s h o w n 	 i n 	 f i g u r e 	 w h i c h
c a r r i e s 	 a 	 l a r g e 	 c u r r e n t 	 o f 	 1 0 A . 	 d i s t a n c e 	 o f 	 1 m 	 i n 	 p e r p e n d i c u l a r
d i r e c t i o n . 	 T h e 	 v a l u e 	 o f 	 m a g n e t i c 	 f i e l d 	 i s
Page 3


Q u e s t i o n 	 1
L i g h t 	 o f 	 w a v e l e n g t h 	 ?
A
	 a n d 	 ?
B
	 f a l l s 	 o n 	 t w o 	 i d e n t i c a l 	 m e t a l 	 p l a t e s 	 A 	 a n d
B 	 r e s p e c t i v e l y . 	 T h e 	 m a x i m u m 	 k i n e t i c 	 e n e r g y 	 o f 	 p h o t o e l e c t r o n s 	 i s 	 K
A
	 a n d
K
B
	 r e s p e c t i v e l y , 	 t h e n 	 w h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 r e l a t i o n s 	 i s 	 t r u e
( ?
A
= 2 ?
B
)
O p t i o n s :
A . 	 K
A
<
K
B
2
B . 	 2 K
A
'
= K
B
C . 	 K
A
= 2 K
B
D . 	 K
A
> 2 K
B
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 2
W h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 c u r v e s 	 r e p r e s e n t s 	 t h e 	 v a r i a t i o n 	 o f 	 i m p e d a n c e
( Z ) 	 w i t h 	 f r e q u e n c y 	 f 	 i n 	 s e r i e s 	 L C R 	 c i r c u i t ?
O p t i o n s :
A .
B .
VITEEE Paper - 2023
Physics
C .
D .
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 3
A 	 C a r n o t 	 e n g i n e 	 t a k e s 	 3 × 1 0
6
	 c a l . 	 o f 	 h e a t 	 f r o m 	 a 	 r e s e r v o i r 	 a t 	 6 2 7
°
C , 	 a n d
g i v e s 	 i t 	 t o 	 a 	 s i n k 	 a t 	 2 7
°
C . 	 T h e 	 w o r k 	 d o n e 	 b y 	 t h e 	 e n g i n e 	 i s
O p t i o n s :
A . 	 4 . 2 × 1 0
6
J
B . 	 8 . 4 × 1 0
6
J
C . 	 1 6 . 8 × 1 0
6
J
D . 	 z e r o
A n s w e r : 	 B
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 4
A n 	 e l e m e n t 	 o f 	 0 . 0 5 i m 	 i s 	 p l a c e d 	 a t 	 t h e 	 o r i g i n 	 a s 	 s h o w n 	 i n 	 f i g u r e 	 w h i c h
c a r r i e s 	 a 	 l a r g e 	 c u r r e n t 	 o f 	 1 0 A . 	 d i s t a n c e 	 o f 	 1 m 	 i n 	 p e r p e n d i c u l a r
d i r e c t i o n . 	 T h e 	 v a l u e 	 o f 	 m a g n e t i c 	 f i e l d 	 i s
O p t i o n s :
A . 	 4 . 5 × 1 0
- 8
T
B . 	 5 . 5 × 1 0
- 8
T
C . 	 5 . 0 × 1 0
- 8
T
D . 	 7 . 5 × 1 0
- 8
T
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 5
A 	 s i n u s o i d a l 	 v o l t a g e 	 o f 	 a m p l i t u d e 	 2 5 	 v o l t 	 a n d 	 f r e q u e n c y 	 5 0 H z 	 i s 	 a p p l i e d
t o 	 a 	 h a l f 	 w a v e 	 r e c t i f i e r 	 u s i n g 	 P - n 	 j u n c t i o n 	 d i o d e . 	 N o 	 f i l t e r 	 i s 	 u s e d 	 a n d
t h e 	 l o a d 	 r e s i s t o r 	 i s 	 1 0 0 0 ? . 	 T h e 	 f o r w a r d 	 r e s i s t a n c e 	 R
f
	 o f 	 i d e a l 	 d i o d e 	 i s
1 0 ? . 	 T h e 	 p e r c e n t a g e 	 r e c t i f i e r 	 e f f i c i e n c y 	 i s
O p t i o n s :
A . 	 4 0 %
B . 	 2 0 %
C . 	 3 0 %
D . 	 1 5 %
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 6
A 	 f l a s k 	 c o n t a i n s 	 a 	 m o n o a t o m i c 	 a n d 	 a 	 d i a t o m i c 	 g a s 	 i n 	 t h e 	 r a t i o 	 o f 	 4 : 1 	 b y
m a s s 	 a t 	 a 	 t e m p e r a t u r e 	 o f 	 3 0 0 K 	 T h e 	 r a t i o 	 o f 	 a v e r a g e 	 k i n e t i c 	 e n e r g y 	 p e r
m o l e c u l e 	 o f 	 t h e 	 t w o 	 g a s e s 	 i s
O p t i o n s :
A . 	 1 : 1
B . 	 2 : 1
C . 	 4 : 1
D . 	 1 : 4
Page 4


Q u e s t i o n 	 1
L i g h t 	 o f 	 w a v e l e n g t h 	 ?
A
	 a n d 	 ?
B
	 f a l l s 	 o n 	 t w o 	 i d e n t i c a l 	 m e t a l 	 p l a t e s 	 A 	 a n d
B 	 r e s p e c t i v e l y . 	 T h e 	 m a x i m u m 	 k i n e t i c 	 e n e r g y 	 o f 	 p h o t o e l e c t r o n s 	 i s 	 K
A
	 a n d
K
B
	 r e s p e c t i v e l y , 	 t h e n 	 w h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 r e l a t i o n s 	 i s 	 t r u e
( ?
A
= 2 ?
B
)
O p t i o n s :
A . 	 K
A
<
K
B
2
B . 	 2 K
A
'
= K
B
C . 	 K
A
= 2 K
B
D . 	 K
A
> 2 K
B
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 2
W h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 c u r v e s 	 r e p r e s e n t s 	 t h e 	 v a r i a t i o n 	 o f 	 i m p e d a n c e
( Z ) 	 w i t h 	 f r e q u e n c y 	 f 	 i n 	 s e r i e s 	 L C R 	 c i r c u i t ?
O p t i o n s :
A .
B .
VITEEE Paper - 2023
Physics
C .
D .
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 3
A 	 C a r n o t 	 e n g i n e 	 t a k e s 	 3 × 1 0
6
	 c a l . 	 o f 	 h e a t 	 f r o m 	 a 	 r e s e r v o i r 	 a t 	 6 2 7
°
C , 	 a n d
g i v e s 	 i t 	 t o 	 a 	 s i n k 	 a t 	 2 7
°
C . 	 T h e 	 w o r k 	 d o n e 	 b y 	 t h e 	 e n g i n e 	 i s
O p t i o n s :
A . 	 4 . 2 × 1 0
6
J
B . 	 8 . 4 × 1 0
6
J
C . 	 1 6 . 8 × 1 0
6
J
D . 	 z e r o
A n s w e r : 	 B
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 4
A n 	 e l e m e n t 	 o f 	 0 . 0 5 i m 	 i s 	 p l a c e d 	 a t 	 t h e 	 o r i g i n 	 a s 	 s h o w n 	 i n 	 f i g u r e 	 w h i c h
c a r r i e s 	 a 	 l a r g e 	 c u r r e n t 	 o f 	 1 0 A . 	 d i s t a n c e 	 o f 	 1 m 	 i n 	 p e r p e n d i c u l a r
d i r e c t i o n . 	 T h e 	 v a l u e 	 o f 	 m a g n e t i c 	 f i e l d 	 i s
O p t i o n s :
A . 	 4 . 5 × 1 0
- 8
T
B . 	 5 . 5 × 1 0
- 8
T
C . 	 5 . 0 × 1 0
- 8
T
D . 	 7 . 5 × 1 0
- 8
T
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 5
A 	 s i n u s o i d a l 	 v o l t a g e 	 o f 	 a m p l i t u d e 	 2 5 	 v o l t 	 a n d 	 f r e q u e n c y 	 5 0 H z 	 i s 	 a p p l i e d
t o 	 a 	 h a l f 	 w a v e 	 r e c t i f i e r 	 u s i n g 	 P - n 	 j u n c t i o n 	 d i o d e . 	 N o 	 f i l t e r 	 i s 	 u s e d 	 a n d
t h e 	 l o a d 	 r e s i s t o r 	 i s 	 1 0 0 0 ? . 	 T h e 	 f o r w a r d 	 r e s i s t a n c e 	 R
f
	 o f 	 i d e a l 	 d i o d e 	 i s
1 0 ? . 	 T h e 	 p e r c e n t a g e 	 r e c t i f i e r 	 e f f i c i e n c y 	 i s
O p t i o n s :
A . 	 4 0 %
B . 	 2 0 %
C . 	 3 0 %
D . 	 1 5 %
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 6
A 	 f l a s k 	 c o n t a i n s 	 a 	 m o n o a t o m i c 	 a n d 	 a 	 d i a t o m i c 	 g a s 	 i n 	 t h e 	 r a t i o 	 o f 	 4 : 1 	 b y
m a s s 	 a t 	 a 	 t e m p e r a t u r e 	 o f 	 3 0 0 K 	 T h e 	 r a t i o 	 o f 	 a v e r a g e 	 k i n e t i c 	 e n e r g y 	 p e r
m o l e c u l e 	 o f 	 t h e 	 t w o 	 g a s e s 	 i s
O p t i o n s :
A . 	 1 : 1
B . 	 2 : 1
C . 	 4 : 1
D . 	 1 : 4
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 7
T h e 	 p o t e n t i a l 	 e n e r g y 	 o f 	 a 	 p a r t i c l e 	 ( U
x
) 	 e x e c u t i n g 	 S . H . M . 	 i s 	 g i v e n 	 b y
O p t i o n s :
A . 	 U
x
=
k
2
( x - a )
2
B . 	 U
x
= k
1
x + k
2
x
2
+ k
3
x
3
C . 	 U
x
= A e
- b x
D . 	 U
x
= a 	 c o n s t a n t
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 8
C o n s i d e r 	 a n 	 e l e c t r i c 	 f i e l d 	
?
E
= E
0
^
x
	 w h e r e 	 E
0
	 i s 	 a 	 c o n s t a n t . 	 T h e 	 f l u x
t h r o u g h 	 t h e 	 s h a d e d 	 a r e a 	 ( a s 	 s h o w n 	 i n 	 t h e 	 f i g u r e ) 	 d u e 	 t o 	 t h i s 	 f i e l d 	 i s
O p t i o n s :
A . 	 2 E
0
a
2
B . 	 v 2 E
0
a
2
C . 	 E
0
a
2
D . 	
E
0
a
2
v 2
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 9
T h e 	 e q u a t i o n 	 o f 	 a 	 w a v e 	 o n 	 a 	 s t r i n g 	 o f 	 l i n e a r 	 m a s s 	 d e n s i t y 	 0 . 0 4 k g m
- 1
	 i s
g i v e n 	 b y
y = 0 . 0 2 ( m ) s i n 2 p
t
0 . 0 4 ( s )
-
x
0 . 5 0 ( m )
T h e 	 t e n s i o n 	 i n 	 t h e 	 s t r i n g 	 i s
[ ( ) ]
Page 5


Q u e s t i o n 	 1
L i g h t 	 o f 	 w a v e l e n g t h 	 ?
A
	 a n d 	 ?
B
	 f a l l s 	 o n 	 t w o 	 i d e n t i c a l 	 m e t a l 	 p l a t e s 	 A 	 a n d
B 	 r e s p e c t i v e l y . 	 T h e 	 m a x i m u m 	 k i n e t i c 	 e n e r g y 	 o f 	 p h o t o e l e c t r o n s 	 i s 	 K
A
	 a n d
K
B
	 r e s p e c t i v e l y , 	 t h e n 	 w h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 r e l a t i o n s 	 i s 	 t r u e
( ?
A
= 2 ?
B
)
O p t i o n s :
A . 	 K
A
<
K
B
2
B . 	 2 K
A
'
= K
B
C . 	 K
A
= 2 K
B
D . 	 K
A
> 2 K
B
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 2
W h i c h 	 o n e 	 o f 	 t h e 	 f o l l o w i n g 	 c u r v e s 	 r e p r e s e n t s 	 t h e 	 v a r i a t i o n 	 o f 	 i m p e d a n c e
( Z ) 	 w i t h 	 f r e q u e n c y 	 f 	 i n 	 s e r i e s 	 L C R 	 c i r c u i t ?
O p t i o n s :
A .
B .
VITEEE Paper - 2023
Physics
C .
D .
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 3
A 	 C a r n o t 	 e n g i n e 	 t a k e s 	 3 × 1 0
6
	 c a l . 	 o f 	 h e a t 	 f r o m 	 a 	 r e s e r v o i r 	 a t 	 6 2 7
°
C , 	 a n d
g i v e s 	 i t 	 t o 	 a 	 s i n k 	 a t 	 2 7
°
C . 	 T h e 	 w o r k 	 d o n e 	 b y 	 t h e 	 e n g i n e 	 i s
O p t i o n s :
A . 	 4 . 2 × 1 0
6
J
B . 	 8 . 4 × 1 0
6
J
C . 	 1 6 . 8 × 1 0
6
J
D . 	 z e r o
A n s w e r : 	 B
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 4
A n 	 e l e m e n t 	 o f 	 0 . 0 5 i m 	 i s 	 p l a c e d 	 a t 	 t h e 	 o r i g i n 	 a s 	 s h o w n 	 i n 	 f i g u r e 	 w h i c h
c a r r i e s 	 a 	 l a r g e 	 c u r r e n t 	 o f 	 1 0 A . 	 d i s t a n c e 	 o f 	 1 m 	 i n 	 p e r p e n d i c u l a r
d i r e c t i o n . 	 T h e 	 v a l u e 	 o f 	 m a g n e t i c 	 f i e l d 	 i s
O p t i o n s :
A . 	 4 . 5 × 1 0
- 8
T
B . 	 5 . 5 × 1 0
- 8
T
C . 	 5 . 0 × 1 0
- 8
T
D . 	 7 . 5 × 1 0
- 8
T
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 5
A 	 s i n u s o i d a l 	 v o l t a g e 	 o f 	 a m p l i t u d e 	 2 5 	 v o l t 	 a n d 	 f r e q u e n c y 	 5 0 H z 	 i s 	 a p p l i e d
t o 	 a 	 h a l f 	 w a v e 	 r e c t i f i e r 	 u s i n g 	 P - n 	 j u n c t i o n 	 d i o d e . 	 N o 	 f i l t e r 	 i s 	 u s e d 	 a n d
t h e 	 l o a d 	 r e s i s t o r 	 i s 	 1 0 0 0 ? . 	 T h e 	 f o r w a r d 	 r e s i s t a n c e 	 R
f
	 o f 	 i d e a l 	 d i o d e 	 i s
1 0 ? . 	 T h e 	 p e r c e n t a g e 	 r e c t i f i e r 	 e f f i c i e n c y 	 i s
O p t i o n s :
A . 	 4 0 %
B . 	 2 0 %
C . 	 3 0 %
D . 	 1 5 %
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 6
A 	 f l a s k 	 c o n t a i n s 	 a 	 m o n o a t o m i c 	 a n d 	 a 	 d i a t o m i c 	 g a s 	 i n 	 t h e 	 r a t i o 	 o f 	 4 : 1 	 b y
m a s s 	 a t 	 a 	 t e m p e r a t u r e 	 o f 	 3 0 0 K 	 T h e 	 r a t i o 	 o f 	 a v e r a g e 	 k i n e t i c 	 e n e r g y 	 p e r
m o l e c u l e 	 o f 	 t h e 	 t w o 	 g a s e s 	 i s
O p t i o n s :
A . 	 1 : 1
B . 	 2 : 1
C . 	 4 : 1
D . 	 1 : 4
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 7
T h e 	 p o t e n t i a l 	 e n e r g y 	 o f 	 a 	 p a r t i c l e 	 ( U
x
) 	 e x e c u t i n g 	 S . H . M . 	 i s 	 g i v e n 	 b y
O p t i o n s :
A . 	 U
x
=
k
2
( x - a )
2
B . 	 U
x
= k
1
x + k
2
x
2
+ k
3
x
3
C . 	 U
x
= A e
- b x
D . 	 U
x
= a 	 c o n s t a n t
A n s w e r : 	 A
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 8
C o n s i d e r 	 a n 	 e l e c t r i c 	 f i e l d 	
?
E
= E
0
^
x
	 w h e r e 	 E
0
	 i s 	 a 	 c o n s t a n t . 	 T h e 	 f l u x
t h r o u g h 	 t h e 	 s h a d e d 	 a r e a 	 ( a s 	 s h o w n 	 i n 	 t h e 	 f i g u r e ) 	 d u e 	 t o 	 t h i s 	 f i e l d 	 i s
O p t i o n s :
A . 	 2 E
0
a
2
B . 	 v 2 E
0
a
2
C . 	 E
0
a
2
D . 	
E
0
a
2
v 2
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 9
T h e 	 e q u a t i o n 	 o f 	 a 	 w a v e 	 o n 	 a 	 s t r i n g 	 o f 	 l i n e a r 	 m a s s 	 d e n s i t y 	 0 . 0 4 k g m
- 1
	 i s
g i v e n 	 b y
y = 0 . 0 2 ( m ) s i n 2 p
t
0 . 0 4 ( s )
-
x
0 . 5 0 ( m )
T h e 	 t e n s i o n 	 i n 	 t h e 	 s t r i n g 	 i s
[ ( ) ]
O p t i o n s :
A . 	 4 . 0 N
B . 	 1 2 . 5 N
C . 	 0 . 5 N
D . 	 6 . 2 5 N
A n s w e r : 	 D
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 1 0
E q u i p o t e n t i a l 	 s u r f a c e s 	 a r e 	 s h o w n 	 i n 	 f i g u r e . 	 T h e n 	 t h e 	 e l e c t r i c 	 f i e l d
s t r e n g t h 	 w i l l 	 b e
O p t i o n s :
A . 	 1 0 0 V m
- 1
	 a l o n g 	 X - a x i s
B . 	 1 0 0 V m
- 1
	 a l o n g 	 Y - a x i s
C . 	 2 0 0 V m
- 1
	 a t 	 a n 	 a n g l e 	 1 2 0
°
	 w i t h 	 X - a x i s
D . 	 5 0 V m
- 1
	 a t 	 a n 	 a n g l e 	 1 2 0
°
	 w i t h 	 X - a x i s
A n s w e r : 	 C
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Q u e s t i o n 	 1 1
W a t e r 	 f a l l s 	 f r o m 	 a 	 4 0 m 	 h i g h 	 d a m 	 a t 	 t h e 	 r a t e 	 o f 	 9 × 1 0
4
k g 	 p e r 	 h o u r . 	 F i f t y
p e r c e n t a g e 	 o f 	 g r a v i t a t i o n a l 	 p o t e n t i a l 	 e n e r g y 	 c a n 	 b e 	 c o n v e r t e d 	 i n t o
e l e c t r i c a l 	 e n e r g y . 	 U s i n g 	 t h i s 	 h y d r o 	 e l e c t r i c 	 e n e r g y , 	 n u m b e r 	 o f 	 1 0 0 W
l a m p s , 	 t h a t 	 c a n 	 b e 	 l i t , 	 i s 	 : 	 ( . 	 T a k e 	 g = 1 0 m s
- 2
)
O p t i o n s :
A . 	 2 5
B . 	 5 0
C . 	 1 0 0
D . 	 1 8
A n s w e r : 	 B
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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