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.Management Sciences
Category: Physics Of Solids
The band theory of solids explains satisfactorily the nature of_________________?
A. Electrical insulators alone
B. Electrical conductors alone
C. Electrical semi conductors alone
D. All of the above
The bulk properties of materials such as their mode of fracture can be related to their____________________?
A. Polymerization
B. Cleavage
C. Microstructure
D. Dislocation
Energy needed to magnetize and demagnetize is represented by _________________?
A. Hysteresis curve
B. Hysteresis loop area
C. Hysteresis loop
D. Straight line
The angular position of cells remains the same for a sample of a crystal. This property is called___________________?
A. Isotropy
B. Cleavage
C. Homogeneity
D. The external symmetry of form
On the basis of band theory of solids the semiconductors have _____________________?
A. A party filled valence band and totally empty conduction band
B. A completely filled valence band a totally empty conduction band and a very wide forbidden band
C. A completely filled valence band a partially filled conduction band and a narrow forbidden band
D. A partly filled valence band a totally empty conduction band and a wide forbidden band
Materials in which valence electrons are tightly bound to their atoms at low temperature are called___________________?
A. Semi conductor
B. Super conductors
C. Insulators
D. Conductor
Very weak magnetic fields are detected by___________________?
A. Squids
B. Magnetic resonance imaging (MRI)
C. Magnetometer
D. Oscilloscope
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