MDCAT Physics Chapter 13 MCQ Test With Answer for (Deformation of Solids)

The ratio of applied stress to volumetric strain is called

• shear modulus A
• Young's modulus B
• Bulk modulus C
• None of these D

The SI unit of stress is some as that of:

• Pressure A
• Momentum B
• Impulse C
• Change momentum D
• Force E

In Insulators the conduction band is

• Empty A
• Partially filled B
• Full C
• None of these D

The main reason for the high speed of bullet train is

• Magnetic effect A
• Reduced friction B
• Design of train C
• None of these D

The motion of a charged nucleus also produces a magnetic field which is

• Weaker than orbital electrons A
• Stronger than orbital electrons  B
• Equal than orbital electrons  C
• None of these D

When a stress changes the shape, it is called the

• compressional stress A
• tensile stress B
• shear stress C
• any one of them D

The substances 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

• diamagnetic substances A
• ferromagnetic substances B
• paramagnetic substances C
• all of them D

The region of plasticity represents

• Proportional limit σ_p A
• Elastic limit σ_e B
• UTS (ultimate tensile strength σ_n) C
• None of these D

The modulus of elasticity of material does not depend upon

• Shape A
• Temperature B
• Nature of material C
• Impurities mixed D

Semiconductor materials have the conductivities generally lies between

• 10^-5 to 10^-6 (Ωm)^-1 A
• 10^-6 to 10^-4 (Ωm)^-1 B
• 10^-7 to 10^-3 (Ωm)^-1 C
• None of these D

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

• Fission reaction A
• Fusion reaction B
• Polymerization reaction C
• Any of these D
• None of these E

If one atom or molecule lies out each of the eight corners of a cube, it is called

• Simple cube A
• Face centered cube B
• Body centered cube C
• None of these D

The limit below which the Hooke s law holds well is called

• Yield point A
• Breaking stress B
• Tensile strength C
• Elastic limit D

• 
  A
• 
  B
• 
  C
• 
  D

The process of doping causes resistivity of semiconductor to

• Increase A
• Decrease B
• Same C
• Become zero D

The insulators have conductivities ties in the range

• 10^-10 to 10^-20 (Ωm)^-1 A
• 10^-5 to 10^-20 (Ωm)^-1 B
• 10^-15 to 10^-25 (Ωm)^-1 C
• None of these D

The area of hysteresis loop is an indication of the

• Permeability of the material A
• Susceptibility of the material B
• Retentivity of the material C
• Energy dissipated per cycle D

Ductility is the property of a substance in which a material undergoes the deformation as

• Elastic deformation A
• Plastic deformation B
• Shear deformation C
• None of these D

The examples of diamagnetic substances 

• Water A
• Copper B
• Antimony C
• All of them D

The force which maintains the strict long-range order between atoms of a crystalline solid is the:

• Nuclear force A
• Cohesive force B
• Adhesive force C
• Coulomb force D
• None of these E