More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Physics Chapter 17 Physics of Solids Online Test MCQs With Answers
Question # 1
The amplitude of oscillation of each atom in a metallic crystal rises with the
Choose an answer
rise in temperature
decrease in temperature
even temperature remains constant
all of them
Previous
Skip
Next
Question # 2
The transition from solid to liquid is actually from:
Choose an answer
Order to disorder
Disorder to order
Order to order
Disorder to disorder
None of these
Previous
Skip
Next
Question # 3
Electrons of an isolated atom are bound to the nucleus, and
Choose an answer
can only have distinct energy level
can only have same energy level
may or may not have distinct energy levels
none of these
Previous
Skip
Next
Question # 4
In a cubic crystal, All solids meet at:
Choose an answer
60
o
90
o
109
o
30
o
10
o
Previous
Skip
Next
Question # 5
In the doping process, the ratio of the doping atoms to the semi conductor atom is
Choose an answer
1 to 10
1 to 10
3
1 to 10
6
1 to 10
9
Previous
Skip
Next
Question # 6
The first super conductor was discovered in
Choose an answer
1811
1890
1901
1911
Previous
Skip
Next
Question # 7
The conduction band in a solid
Choose an answer
may be empty
cannot be empty
should be filed
all of them
Previous
Skip
Next
Question # 8
A structure of polymeric solid is:
Choose an answer
An ordered structure
A disordered structure
Intermediate between order and disorder
Any of these
None of these
Previous
Skip
Next
Question # 9
The modulus of elasticity can be written as
Choose an answer
stress x strain
strain/stress
1/2 x stress x strain
stress/strain
Previous
Skip
Next
Question # 10
When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as
Choose an answer
impurification
adding
doping
extrinsivity
Previous
Skip
Next
Question # 11
The SI unit of strain is
Choose an answer
N
Dynes
Pascal
Dimensionless
Previous
Skip
Next
Question # 12
The whole structure obtained by the repetition of unit cells is called:
Choose an answer
Crystal lattice
Amorphous solid
Polymeric solid
Polysterne
None of these
Previous
Skip
Next
Question # 13
The vast majority of solids are in the form of
Choose an answer
amorphous structure
polymeric structure
crystalline structure
all of them
Previous
Skip
Next
Question # 14
Polymeric solids have
Choose an answer
low specific gravity
high specific gravity
either of them
none of them
Previous
Skip
Next
Question # 15
Amorphous solids:
Choose an answer
Have definite melting points
Are called glassy solids
Have no definite melting point
Both (B) and (C)
Both (A) and (C)
Previous
Skip
Next
Back