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

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

Question # 2

Substances which break just after the elastic limit is reached, are known as

Question # 3

The arrangement or molecules or atoms in a crystalline solid can be studied by using:

Question # 4

The SI unit of strain is

Question # 5

The units of modulus of elasticity are

Question # 6

The molecules or ions in a crystalline solids are

Question # 7

The modulus of elasticity can be written as

Question # 8

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

Question # 9

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

Question # 10

When relatively simple molecules are chemically combined into massive molecules, the reaction is called:

Question # 11

The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called

Question # 12

The pattern of crystalline solid is:

Question # 13

A semi-conductor in its extremely pure form is known as

Question # 14

The substance in which atoms cooperate with each other in such a way so as to exhibit a strong magnetic effect, are called

Question # 15

Amorphous solids are also more like

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ECAT Physics Chapter 17 Important MCQ's

Sr.# Question Answer
1 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
2 In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as
A. plastic limit
B. plastic deformation
C. proportional limit
D. elastic behaviour
3 Which of the following theory completely explain the three types of materials
A. Bohr model of electron distribution
B. Rutherford atomic model
C. Pauli's exclusion principle
D. energy band theory
4 Polymeric solids have
A. low specific gravity
B. high specific gravity
C. either of them
D. none of them
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 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
7 The SI unit of stress is
A. N/m2
B. Nmc
C. dynes/m
D. N
8 The valence band of an atom in a solid
A. is always empty
B. may or may not be empty
C. can never be empty
D. none of them
9 When a stress changes length, it is called the
A. compressional stress
B. tensile stress
C. shear stress
D. any one of them
10 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

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