1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
The given truth table is for which logic gate

              $$\matrix{ A & B & Y \cr 1 & 1 & 0 \cr 0 & 1 & 1 \cr 1 & 0 & 1 \cr 0 & 0 & 1 \cr } $$
A
NAND
B
XOR
C
NOR
D
OR.
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In a p-n junction
A
high potential at n side and low potential at p side
B
high potential at P side and low potential at n side
C
p and n both are at same potential
D
undetermined.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
For the given circuit of p-n junction diode which is correct

AIPMT 2002 Physics - Semiconductor Electronics Question 40 English
A
in forward bias the voltage across R is V
B
in reverse bias the voltage across R is V
C
in forward bias the voltage across R is 2V
D
in reverse bias the voltage across R is 2V.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
For a black body at temperature 727oC, its radiating power is 60 watt and temperature of surrounding is 227oC. If temperature of black body is changed to 1227oC then its radiating power will be
A
304 W
B
320 W
C
240 W
D
120 W
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