1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
An alpha nucleus of energy $${1 \over 2}$$ mv2 bombards a heavy nuclear target of charge Ze. Then the distance of closest approach for the alpha nucleus will be proportional to
A
$${1 \over {Ze}}$$
B
v2
C
$${1 \over m}$$
D
$${1 \over {{v_4}}}$$
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
To get an output Y = 1 in given circuit which of the following input will be correct ?

AIPMT 2010 Prelims Physics - Semiconductor Electronics Question 77 English
A
A $$ \to $$ 1,  B $$ \to $$ 0,  C $$ \to $$ 0
B
A $$ \to $$ 1,  B $$ \to $$ 0,  C $$ \to $$ 1
C
A $$ \to $$ 1,  B $$ \to $$ 1,  C $$ \to $$ 0
D
A $$ \to $$ 0,  B $$ \to $$ 1,  C $$ \to $$ 0
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following statement is false ?
A
Pure Si doped with trivalent impurities gives a p-type semiconductor.
B
Majority carries in a n-type semiconductor are holes.
C
Minority carries in a p-type semiconductor are electrons.
D
The resistance of intrinisic semiconductor decreases with increase of temperature.
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
The device that can act as a complete electronic circuit is
A
junction diode
B
integrated circuit
C
junction transistor
D
zener diode
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