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.Management Sciences
Category: Physics Of Solids
Any alteration produced in shapes length or volume when a body is subjected to some external force is called____________________?
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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)
What is the SI unit of modulus of elasticity of substance ?
A. Nm-2
B. Jm-2
C. Nm-1
D. Being a number it has no unit.
If the density of atoms remain same along any direction in a crystal is called__________________?
A. Symmetry
B. Homogeneity
C. Isotropy
D. Cleavage
The net charge on n-type material is____________________?
A. Positive
B. Negative
C. Both positive and negative
D. Neutral
Which one of the following physical quantities does not have the dimensions of force per unit area ?
A. Stress
B. Strain
C. Youngs modulus
D. Pressure
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