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

Examples of polymeric substances are:

Question # 2

If the stress increased beyond the elastic limit of the material. the deformation produced in the material will be

Question # 3

In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called

Question # 4

Amorphous solids:

Question # 5

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

Question # 6

The units of modulus of elasticity are

Question # 7

A structure of polymeric solid is:

Question # 8

The cohesive forces between atoms, molecules or ions in crystalline solids maintain the strict

Question # 9

The whole structure obtained by the repetition of unit cells is called:

Question # 10

Amorphous solids are also called as

Question # 11

The curie temperature of iron is about

Question # 12

Tick the one which is not polymer solid:

Question # 13

There is a regular arrangement of molecules in a

Question # 14

When a silicon crystal is doped with a pentavalent element, such an extrinsic semi-conductor is called

Question # 15

Crystalline solids are in the form of:

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following can become a good temporarily magnet
A. iron
B. steel
C. both of them
D. none of them
2 The amplitude of oscillation of each atom in a metallic crystal rises with the
A. rise in temperature
B. decrease in temperature
C. even temperature remains constant
D. all of them
3 The transition from solid to liquid is actually from:
A. Order to disorder
B. Disorder to order
C. Order to order
D. Disorder to disorder
4 The word amorphous means:
A. Without any structure
B. With definite structure
C. Regular arrangement of molecules
D. Both (B) and (C)
5 When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as
A. impurification
B. adding
C. doping
D. extrinsivity
6 The pattern of NaCl particles have a shape which is :
A. Cubic
B. Body centred cubic
C. Simple cubic
D. face centred
7 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
8 Ferromagnetic substances lose their magnetism when heated above a certain temperature, known as
A. critical temperature
B. curie temperature
C. high temperature
D. fixed temperature
9 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
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
10 Any superconductor with critical temperature above 77 K, is referred as
A. low temperature superconductor
B. high temperature superconductor
C. very low temperature superconductor
D. none of them

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