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

Question # 2

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

Question # 3

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

Question # 4

Amorphous solids:

Question # 5

A unit cell is smallest basic structure which is:

Question # 6

The units of modulus of elasticity are

Question # 7

Semi-conductor elements have atoms with

Question # 8

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

Question # 9

The electrons in the outermost shell of an atom are called

Question # 10

The modulus of elasticity can be written as

Question # 11

The pattern of crystalline solid is:

Question # 12

When a stress changes the shape, it is called the

Question # 13

The valence band of an atom in a solid

Question # 14

The critical temperature of tin is

Question # 15

Under the elastic region, the deformation produced in the material, the deformation produced in the material will be

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 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
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 ability of the body to return to its original shape is called
A. deformation
B. stretching
C. compressing
D. elasticity
4 An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:
A. 800oC
B. 500oC
C. 300oC
D. 100oC
5 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
6 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
7 An atom in which there is a resultant magnetic field, behaves like a tiny magnet and is called as
A. magnetic
B. magnetic dipole
C. magnetic monopole
D. none of them
8 The solids are classified as:
A. Metals
B. Crystalline
C. Amorphous
D. Polymeric
9 The vast majority of solids are in the form of
A. amorphous structure
B. polymeric structure
C. crystalline structure
D. all of them
10 The transition from solid state to liquid state is:
A. Abrupt
B. Slow
C. Continous
D. Discontinous

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