ECAT Pre Engineering Physics Chapter 17 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Physics ECAT Pre Engineering Chapter 17 Physics of Solid

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Question # 1

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 # 2

In a soft iron, domains are

Question # 3

In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as

Question # 4

Lead, copper and wrought iron are examples of

Question # 5

Synthetic materials fall into the category of

Question # 6

The bonding between the semi-conductor materials is

Question # 7

In a semi-conductor material, the total current is

Question # 8

A unit cell is smallest basic structure which is:

Question # 9

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

Question # 10

Amorphous solids are also more like

Question # 11

The transition from solid state to liquid state is:

Question # 12

Experiments revealed that the ratio of the stress to the strain is a constant value for

Question # 13

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

Question # 14

When the shear stress and shear stain are involved, then their ratio is called

Question # 15

The curie temperature of iron is about

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 The solids which has structure in-between order and disorder are called
A. amorphous solids
B. polymeric solids
C. crystalline solids
D. all of them
2 The whole structure obtained by the repetition of unit cells is called:
A. Crystal lattice
B. Amorphous solid
C. Polymeric solid
D. Polysterne
3 When the shear stress and shear stain are involved, then their ratio is called
A. Young's modulus
B. Bulk modulus
C. Shear modulus
D. all of them
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 units of modulus of elasticity are
A. Nm-2
B. Nm
C. ms-1
D. Pascal
6 Each atom in a metal crystal vibrates about a fixed point with an amplitude that:
A. Decrease the rise in temprature
B. Is not affected by rise in temprature
C. Increase with rise in temprature
D. Both (B) and (C)
7 The materials in which there are plenty of free electrons for electrical conduction are known as
A. conductors
B. insulators
C. semi-conductors
D. all of them
8 The charged nucleus of an atom itself spins its magnetic field
A. equal to the field produced by orbital electrons
B. greater than the field produced by orbital electrons
C. much weaker than the field produced by orbital electrons
D. none of these
9 In a soft iron, domains are
A. easily oriented along external field and do not return to original random positions
B. easily oriented along external field and readily returns to originally random position
C. do no oriented along external field and also do not returns to originally random position
D. none 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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