MDCAT Physics MCQ's Test With Answers

MDCAT Physics MCQ's Test

Sr. # Questions Answers Choice
1 Which one of the following is not a base unit. Ampere Kelven Watt Candela
2 Which of the following is/are base unit/s: Square meter Cubic meter Candela all of them
3 The subtances which break just after the elastic limit is reached are known as: Ductile Brittle Malleable Hard Soft
4 Substances which undergo plastic deformation until they break are called: Ductile Brittle Malleable Soft Hard
5 The value of shear modulus is zero for: Water Mercury Diamond Both (A) and (B) Both (A) and (C)
6 The value of young's modulus is maximum for: Dimond Copper Ice Mercury Water
7 Modulus elasticity of any materiel is of the order of: 10<sup>5</sup> 10<sup>2</sup> 10<sup>-2</sup> 10<sup>-5</sup> 10<sup>-10</sup>
8 Bulk modulus is involved when the deformation is: One dimentional Two dimentional Three dimentional Any of these None of these
9 The symbol K and G have been used to denote respectively: Young's modulus and bulk modulus Young's modulus and shear modulus Bulk modulus and shear modulus Any of these None of these
10 Which of the following have the same unit: Both (A) and (C) Both (A) and (B) Modulus elasticty Strain Stress
11 Change in length divided by original length is called: <span style="font-size: 12px;">tress</span> Young's modulus Strain Both (B) or (C) None of these
12 Force applied on a unit area of a body to produce any change in its shape, Volume or length of a body is called: Strain Stress Young's modulus Bulk modulus Either (C) or (D)
13 Nm-2is approximately called: Telsa Weber Pascal Watt Guass
14 The SI unit of stress is some as that of: Pressure Momentum Impulse Change momentum Force
15 A stress which decreases the stress along one dimension is known as: Compressive stress Tensile stress Linear stress Both (B) and (C)
16 A stress which is along one dimension is known as: Tensile stress Linear stress Compressive stress Both (A) and (C) Both (A) and (B)
17 Stress maybe: Tensile Compressive Compressible All of these Both (A) and (B)
18 Which of the quantity is dimensionless: Strain Stress Modulus of elasticity Work Entorpy
19 When the stress change length of a body, it is called: Shear stress Tensile stress Volume stress Any of these <i>None of these</i>
20 Stress may cause a change in: Length Volume Shape Any of these None of these
21 Strain is defined in terms of: Formation Deformation Area Newtons None of these
22 The results of mechanical tests are usually expressed in terms of: Stress Applied force Strain Deformation All of these
23 Stress is defined in terms of: Applied force <span style="font-size: 12px;">Deformation</span> Formation Any of these None of these
24 The ability of body to return to its original shape (after the force is removed) is called: Elasticity Ductility Stress Strain Any of these
25 When a body is subjected to some external force, deformation is produced in: Shape Length Volume Any of these None of these
26 Polymers have specific gravity which is: Low as compared to even the lightest metal High as compared to the heaviest metal Intermediate Any of these None of tese
27 Polymers are the chemical combination of carbon with: Nitrogen Oxygen Hydrogen All of these None of these
28 If P is the pressure and V is the volume, Then PV will represent: Power Work Force None of these
29 Tick which of the following is not state variable: Heat energy Pressure Entropy Volume
30 In which process, the change in internal energy of the system of zero: Isochoric process isobaric process Adiabatic process Isothermal process
31 First law of thermodynamics is merely a statement of law of conversation of: Energy Angular momentum Change Linear momentum
32 In thermodynamics, the change in internal energy depends upon: The path taken between initial and final states The initial state only The final state only Initial and final states
33 When a gas is compressed: Its internal energy decreases Its temperature decreases Its temperature increases None of these
34 The ideal gas obey gas law at: Low tempratures and high pressures High temperatures and low pressures All temperatures and pressures None of these
35 Thermal radiations are a type of: Mechanical waves Electromagnetic waves Alpha rays Electrons
36 For a gas obeying Boyle's law, if the pressure is doubled the volume becomes: One half Double Four times None of these
37 The temperature at which all the gases become liquid is called: 273 K -273 K Absolute Zero Both (B) and (C)
38 The number of molecules in one mole of gas is equal to: Avogadro number N<sub>A</sub> Gas constant R Boltzmann constant k None of these
39 Brownian motion confirms the truth of : Wave theory of light Boyle's law Kinetic theory of gases Adiabatic process
40 According to boyle's law, volume of a given mass of a gas is Inversely proportional mass at constant pressure Directly proportional to pressure at constant temprerature Inversely proportional pressure at constant temprature None of these
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