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 first super conductor was discovered in

Question # 2

Amorphous solids:

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

Semi-conductor elements have atoms with

Question # 5

There is a regular arrangement of molecules in a

Question # 6

The force applied on unit area to produce any change in the shape, volume or length of a body is known as

Question # 7

In the doping process, the ratio of the doping atoms to the semi conductor atom is

Question # 8

The solids are classified as:

Question # 9

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

Question # 10

Examples of polymeric substances are:

Question # 11

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

Question # 12

The bonding between the semi-conductor materials is

Question # 13

The units of modulus of elasticity are

Question # 14

Polymeric solids have

Question # 15

The molecules or ions in a crystalline solids are

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 Substances which break just after the elastic limit is reached, are known as
A. brittle substances
B. ductile substances
C. plastic substances
D. elastic substances
2 Crystalline solids are in the form of:
A. Metals
B. Ionic Compounds
C. Ceramics
D. Both (A) and (B)
3 The critical temperature of mercury is
A. 1.18 K
B. 4.2 K
C. 3.72 K
D. 7.2 K
4 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
5 Tick the one which is not polymer solid:
A. Zirconia
B. Polythene
C. Nylon
D. Synthetic rubber
6 A semi-conductor in its extremely pure form is known as
A. extrinsic semi-conductor
B. intrinsic semi-conductor
C. either of them
D. none of them
7 The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called
A. diamagnetic substances
B. ferromagnetic substances
C. paramagnetic substances
D. all of them
8 The molecules or ions in a crystalline solids are
A. static
B. not static
C. randomly moving
D. all of them
9 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
10 The bands below the valence band are
A. completely filled and play active part in conduction process
B. completely filled and plays no part in conduction process
C. completely filled and play active part in conduction process
D. not completely filled and play no part in conduction process

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