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.Management Sciences
Category: Physics Of Solids
With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?
0
A. Decreases
B. Increases
C. Remains same
D. First increases then decreases
A vacant or partially filled band is called _____________________?
A. Conduction band
B. Valence band
C. Forbidden band
D. Empty band
Formation of large molecule by joining small molecules is_________________?
A. Fusion
B. Polymerization
C. Crystallization
D. Subtraction
In a semiconductors the charge carriers are ___________________?
A. Holes only
B. Electrons only
C. Electron and holes both
D. All of the above
Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________?
A. Stiffness
B. Toughness
C. Extension
D. Deformation
Many of the semi conductors are crystals of the type__________________?
A. Face centred cubic
B. Body centred cubic
C. Simple cubic
D. All of the above
A completely filled band is called__________________?
A. Conduction band
B. Valence band
C. Forbidden band
D. Core band
The electrons in conduction band are free to___________________?
A. Transport vibrations
B. Transport signals
C. Transport charge
D. Transport impulses
A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by_________________?
A. Stress/strain
B. (stress/strain)
C. Stress x strain
D. (Stress / strain)
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