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

The polymeric solids have specific gravity compared with even the lightest of metals

• Low A
• Very Low B
• Slightly low C
• None of these D

• 
  A
• 
  B
• 
  C
• 
  D

On heating, glass gradually softens into a paste-like state before it becomes a very viscous liquid at almost

• 600°C A
• 7600°C B
• 800°C C
• 900°C D

Glass and high carbon steel are the examples of

• brittle substances A
• ductile substances B
• plastic substances C
• elastic substances D

Stress may cause a change in:

• Length A
• Volume B
• Shape C
• Any of these D
• None of these E

The charged nucleus of an atom itself spins its magnetic field is

• Equal to the field produced by orbital electrons A
• Greater than the field produced by orbital electrons B
• Much weaker than the field produced by orbital electrons C
• Very strong D

The temperature below which materials are superconductor is called as:

• Kelvin temperature A
• Critical temperature B
• Curie temperature C
• none of these D

Crystalline solids have the properties such as

• Regular arrangement A
• Covalent bonding B
• Some what defective C
• All of them D

Which of the following strain are possible in solids

• Linear A
• Volumetric B
• Shear C
• All of these D

In the phenomenon of hysteresis, the magnetism and magnetizing current behaves as

• I lags A
• 1 leads B B
• I & B becomes equal C
• None of these D

Strain is defined in terms of:

• Formation A
• Deformation B
• Area C
• Newtons D
• None of these E

The domains are of macroscopic size of the order of

• centimetres A
• metres B
• millimetres C
• nanometres D

Which of the following theory completely explain the three types of materials?

• Bohr model of electron distribution A
• Rutherford atomic model B
• Pauli's exclusion principle C
• energy band theory D

Every crystalline solid has

• definite melting point A
• different melting points B
• may or may not be definite C
• none of them D

The energy gap between conduction band and valence band is semiconductor is

• A very narrow forbidden energy gap A
• A narrow forbidden gap B
• Of the order of 1 eV C
• a and b D

The electrons in the outermost shell of an atom are called

• Valence electrons A
• Tightly bound electrons B
• Free electrons C
• None of these D

A wire is stretched to double of its length. Its train is:

• 2 A
• 1 B
• 0 C
• 0.5 D

Shear stress addresses to the:

• Volume changes due to the applied stress A
• Shape changes due to the applied stress B
• Length changes due to the applied stress C
• All of the above D

The magnetic fields produced by electron in an atom is due to

• Spin motion A
• Orbital motion B
• Both a & b C
• All above D

What is the SI unit of Tensile strain?

• Nm^-2 A
• Jm^-2 B
• Nm^-1 C
• Being a number, it has no unit D