MDCAT Physics Chapter 13 Deformation of Solids MCQ's Test With Answers

MDCAT Physics Chapter 13 Deformation of Solids MCQ's Test

Sr. # Questions Answers Choice
1 Which of the given strains can also be written as tan θ Compressional strain Volumetric strain Shear strain All of these
2 Material with smaller hystersis loop area are best for the construction of Transformer Core of transformer D.C motor Rectifier
3 Domains are present only in Diamagnetic material  Para magnetic material Ferromagnetic material All of these
4 Solids having partially field conduction bands are Insulator Semiconductor Super conductor Semi conductor
5 The dimension of elastic modulus ML<sup>-1</sup>T<sup>2</sup> MLT<sup>2</sup> ML<sup>-1</sup>T<sup>2</sup> MLT<sup>3</sup>
6 Hooks law hols within Proportional limit Elastic limit Plastic limit None
7 Which of the following has no dimension Stress Strain Elastic modulus Both strain and elastic modulus
8 Those solid which breaks soon after crossing the elastic limit are called Amorphous Glassy solid Crystalline solid Brittle
9 Which of the following is not crystalline solid Zinc Copper Sodium chloride None of these
10 Solids which have no regular atomic structure are called Crystalline solid elastic solid Glassy solid All of these
11 The area of hysteresis loop is an indication of the Permeability of the material Susceptibility of the material Retentivity of the material Energy dissipated per cycle
12 Steel is preferred for making permanent magnets because it has Large retentivity and large coercively Small retentively and small coercively Large retentively and small soercively Small retentively and large coactivity
13 Magnetic permeability is maximum for Dia-magnetic Ferromagnetic Paramagnetic Non-magnetic
14 A piece of copper and another of germinium are cooled from room temperature to 80K. The resistance of Each of them increases Each of them decreases Copper increases and germanium for Copper decreases and germanium increases
15 With rise in temperature the electric conductivity of intrinsic semiconductor Increases Decreases First increases and then decreases First decreases and then increases
16 If band gap between valence and conduction band material is 5 eV. The material is Insulator Good conductor Semiconductor Such material are not exist
17 The forbidden energy gap in semiconductors Lies just below the valence band Lies just above the conduction band Is the same as the valence band Lies between the valence band and conduction band
18 The forbidden energy band gaps in conductors semiconductors and EG,EG2 and EG3 respectively The relation among them is EG<sub>1</sub> = EG<sub>2</sub> =&nbsp;EG<sub>3</sub> EG<sub>1</sub>&nbsp;&lt; EG<sub>2</sub>&nbsp;&lt;&nbsp;EG<sub>3</sub> EG<sub>1</sub>&nbsp;&gt; EG<sub>2</sub>&nbsp;&gt;&nbsp;EG<sub>3</sub> EG<sub>1</sub>&nbsp;&lt; EG<sub>2</sub>&nbsp;&gt;&nbsp;EG<sub>3</sub>
19 A semiconductor is known to have an electron concentration of 8 x 1013 per cm3 and hole concentration of 5 x 1012 per cm3 the semiconductor is n-type P-type Intrinsic None of these
20 The young s modulus of a wire of length L and radius r is Y if the length is reduced to L/2 and radius to r/2 its young s modulus wire be Y / 2 Y 2 Y 4 Y
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