Worksheetssolid state physics basics
Total questions: 16
Worksheet time: 23mins
________ contain zero number of unpaired electrons
diamagnetic
paramagnetic
ferromagnetic
ferrimagnetic
Which of the following types of solids is represented by substances like glass, rubber, fused silica, plastics etc.
polycrystalline
amorphous
crystalline
plasma
Which of the following metals is not diamagnetic?
Mercury
Iron
Bismuth
Gold
Which of the following is not a property of crystalline solid?
sharp melting point
isotropy
definite geometry
anisotropy
The highest filled energy band in a solid is called
valence band
conduction band
fermi level
equal level
The valence electrons do not directly measure the following property of a metal
electrical conductivity
thermal conductivity
shear modulus
metallic luster
Solids with high value of conductivity are called
Conductors
Non metal
Insulators
Semi Conductors
At zero kelvin semiconductors are
Perfect metals
Perfect semiconductor
Perfect Non metals
Perfect Insulators
The electrons in Valence bond are
freely moving inside the solid
tightly bonded inside the solid
lies in the innermost orbits and cannot be made free
lies in the outermost orbits and cannot be made free
At 0 K Conduction band will be
fully occupied
completely empty
partially occupied by electrons
partially occupied by holes
For metals Conduction band and valence Band are
fully occupied
empty
Partially occupied
Overlapping
The order of magnitude of the energy gap of a typical semiconductor is
0 eV
1-6 eV
10 eV
9 eV
Pure silicon at 0K is an
Intrinsic semiconductor
Extrinsic semiconductor
metal
insulator
At 0K, all the valence electrons in an intrinsic semiconductor
are in the valence band
are in the forbidden gap
are in the conduction band
are free electrons
P-type and N-type extrinsic semiconductors are formed by adding impurities of valency?
5 and 3 respectively
5 and 4respectively
3 and 5 respectively
3 and 4 respectively
The bond that exists in a semiconductor is:
Ionic bond
covalent bond
metallic bond
hydrogen bond
