1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A circular disc is to be made by using iron and aluminium so that it acquired maximum moment of inertia about geometrical axis. It is possible with
A
aluminium at interior and iron surround to it
B
iron at interior and aluminium surround to it
C
using iron and aluminium layers in alternate order
D
sheet of iron is used at both external surface and aluminium sheet as internal layers.
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following is best close to an ideal black body?
A
black lamp
B
cavity maintained at constant temperature
C
platinium black
D
a lump of charcoal heated to high temperature.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
The Wien's displacement law express relation between
A
wavelength corresponding to maximum energy and temperature
B
radiation energy and wavelength
C
temperature and wavelength
D
colour of light and temperature.
4
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 43 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.