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 The SI unit of stress is same as that of Momentum Pressure Force Length
2 The ability of body to return to its original shape is called Elasticity Stress Strain Shear
3 Which one of the following is polymer Polythene Polystyrene Nylon All
4 Amorphous solids are called Polymeric Crystal Glassy solids All
5 The idea that all magnetic effects may be due to circulating currents (i.e moving charges) Was first held by Ampere Faraday Lenz Gauss
6 When a germanium atom is doped with phosphorous atoms it becomes N-type semiconductor p-type semiconductor An insulator None of them
7 Acceptor impurities donate Holes Electrons Both Electrons and Holes None of them
8 Donor impurities donate Holes Electrons Both holes and electrons None of them
9 An n-type semiconductor is obtained by doping germanium or silicon with Tetravalent impurity Trivalent impurity Pentavalent impurity Monovalent inpurity
10 The charged nucleus of an atom itself spins its magnetic field is Equal to the field produced by orbital electrons Greater than the field produced by orbital electrons Much weaker than the field produced by orbital electrons Very strong
11 The greatest stress that a material can endure without losing the proportionality between stress and strain is called Plasticity Breaking point Proportional limit Strain
12 In the stress-strain graph stress is increased linearly with strain until a point is reached this point is known as Plastic limit Plastic deformation Proportional limit Elastic behaviour
13 Ratio between total intensity of magnetic field at equator to poles is 1 : 1 2 : 1 1 : 2 1 : 4
14 The conductivity of super conductor at critical temperature becomes Zero 1 Infinite Negative
15 The unit cell of the shape of match box is called Cubic Tetragonal Orthorhombic Rhomboheral
16 Which of the following is not true for a crystalline substance Shorter range order Isotropic electrical conductivity Flat surface Sharp melting point
17 The young s modulus for a perfectly rigid body is Zero 1 Infinite None of these
18 A wire is stretched by applying a stretching force.If the stretching force is doubled within elastic limit Then energy stored in the wire will Be double Increase by four times Increase by eight time Remain same
19 A women of 50 kg distributes her wright equally over high-heeld shoes. Each heel has an area of 0.75 cm2. The pressure exerted by each heel will be 6.66 x 10<sup>6</sup> Pa 3.33&nbsp;x 10<sup>6</sup>&nbsp;Pa 1.67&nbsp;x 10<sup>6</sup>&nbsp;Pa 3.33&nbsp;x 10<sup>-6</sup>&nbsp;Pa
20 The limit up to which the stress is directly proportional to strain is called Elastic limit Proportional limit Breaking limit Ultimate tensile limit
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