1.
The area method to
find energy stored in deformed material is valid for
a)
Elastic region
b)
Non-elastic region
c)
Both a and b
d)
Elastic for small
force
2. Which of the following group
represents donor atoms
a) Indium, aluminum, phosphorous
b) Aluminum, indium, gallium
c) Phosphorous, antimony, arsenic
d) None
3.
The Curie
temperature is that temperature at which
a)
Semi-conductor
becomes conductor
b)
Ferromagnetic
becomes paramagnetic
c)
Paramagnetic
becomes diamagnetic
d)
Metals becomes
super conductor
1.c
2.c
3.b
