ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 17 Physics of Solids

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ECAT Physics Chapter 17 Physics of Solids

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Question # 1

The molecules or ions in a crystalline solids are

Question # 2

The solids which has structure in-between order and disorder are called

Question # 3

When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as

Question # 4

Electrons of an isolated atom are bound to the nucleus, and

Question # 5

Any superconductor with critical temperature above 77 K, is referred as

Question # 6

The transition from solid state to liquid state is:

Question # 7

The domains are of macroscopic size of the order of

Question # 8

Each atom in metal crystal:

Question # 9

The pattern of NaCl particles have a shape which is :

Question # 10

Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at

Question # 11

Within each domain, the magnetic field of all the spinning electrons are

Question # 12

Each atom in a metal crystal vibrates about a fixed point with an amplitude that:

Question # 13

The measure of the deformation in a solid when stress is applied to its is called

Question # 14

The modulus of elasticity can be written as

Question # 15

Zirconia is classified as:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The materials in which valence electrons are bound very tightly to their atoms and are not free, are known as
A. conductors
B. insulators
C. semi-conductors
D. all of them
2 In the phenomenon of hysteresis
A. magnetism leads the magnetising current
B. magnetism lags behind the magnetising current
C. meganetism goes along the magnetising current
D. none of them
3 When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called
A. energy bands
B. energy shells
C. states
D. all of them
4 There is a regular arrangement of molecules in a
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. none of them
5 The magnetism produced by electrons within an atom can arise from
A. electrons orbiting the nucleus
B. electrons posses a spin
C. both motions
D. none of these motions
6 Glass and high carbon steel are the examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
7 The pattern of crystalline solid is:
A. One dimesional
B. Two dimensional
C. Three dimensional
D. None of these
8 In a semi-conductor material, the total current is
A. only the +ve current
B. only the electronic current
C. sum of +ve and electronic current
D. all of them
9 Whenever a covalent bond is broken in an intrinsic semi-conductor
A. hole is created
B. an electron is created
C. an electron-hole pair is generated
D. all of them
10 Examples of crystalline solids are:
A. Cooper
B. NaCl
C. Zirconia
D. Both (A) and (B)

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