ECAT Pre Computer Science Chapter 17 MCQ Test With Answer

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

Try The 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

Which of the following can become a good temporarily magnet

Question # 2

Crystalline solids are in the form of:

Question # 3

The temperature at which the vibrations become so great that structure of the Crystal breaks up, is called:

Question # 4

Each atom in metal crystal:

Question # 5

The force which maintain the strict long-range order between atoms of a crystalline solid is the:

Question # 6

When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as

Question # 7

An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as

Question # 8

The valence band of an atom in a solid

Question # 9

Lead, copper and wrought iron are examples of

Question # 10

The ratio of linear stress/linear strain is called as

Question # 11

Amorphous solids are also called as

Question # 12

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Question # 13

The substance in which atoms are so oriented that the field produced by spin and orbital motion of the electrons might add up to zero,are called

Question # 14

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

Question # 15

The SI unit of strain is

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 When a silicon crystal is doped with a pentavalent element, then the atom of the pentavalent element is known as
A. acceptor
B. donor
C. either of them
D. none of them
2 Lead, copper and wrought iron are examples of
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
3 Electrons of an isolated atom are bound to the nucleus, and
A. can only have distinct energy level
B. can only have same energy level
C. may or may not have distinct energy levels
D. none of these
4 The neighbours of every molecule in crystalline solids are arranged in
A. an irregular manner
B. a regular manner
C. any manner
D. none of them
5 The greatest stress that a material can endure without losing the proportionality between stress and strain is called
A. plastic line
B. breaking point
C. proportional limit
D. none of them
6 There are some whose resistivity becomes zero below a certain temperature, called
A. absolute zero
B. 0°C
C. critical temperature
D. lower fixed point
7 The maximum stress that a material can withstand, is known as
A. plastic point
B. elastic limit
C. yield point
D. ultimate tensile strength
8 Above the curie temperature, iron becomes
A. ferromagnetic
B. paramagnetic
C. diamagnetic
D. any one of them
9 The curie temperature of iron is about
A. 250°C
B. 500°C
C. 750°C
D. 1000°C
10 The bonding between the semi-conductor materials is
A. covalent
B. ionic
C. either of them
D. none of them

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