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

Examples of polymeric substances are:

• Plastic A
• Synthetic rubbers B
• Zirconia C
• All of these D
• Both A and B E

Young's modulus for water is

• 0 A
• 2 B
• 5 C
• 9 D

When small number of atoms from some other suitable element is added to the semi-conductor material, then this process is known as

• impurification A
• adding B
• doping C
• extrinsivity D

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 10⁶ Pa A
• 3.33 x 10⁶ Pa B
• 1.67 x 10⁶ Pa C
• 3.33 x 10^-6 Pa D

In a semiconductor,the mobility of holes is

• Greater then electrons A
• Less than electrons B
• Equal to electrons C
• None D

The valency of electron in the valence band is known as

• Atom A
• Molecule B
• Hole C
• None of these D

The ultimate tensile strength is

• Greatest stress, a material can endure A
• Stress is increased beyond the yield strength B
• Maximum stress, a material can with stand C
• None of these D

While vibrating the atoms are at their

• Fixed positions A
• Extreme position B
• Average positions C
• None of these D

• 
  A
• 
  B
• 
  C
• 
  D

A geometric shape of a solid obtained by regular, respetive, three-dimensional arrangements of its molecules,atoms or ions is called a:

• Crystal A
• Crystal Lattice B
• Crystal plane C
• None of these D

Substances which undergo plastic deformation until they break are called:

• Ductile A
• Brittle B
• Malleable C
• Soft D
• Hard E

Stress may cause a change in:

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

The crystalline structure of NaCl is

• rectangular A
• hexagonal B
• tetrahedral C
• cubical D

The atoms molecules or ions in a crystalline solids are at room temperature

• Motionless A
• Vibrate violently B
• Fixed C
• Simply vibrate D

The critical temperature of mercury is

• 1.18 K A
• 4.2 K B
• 3.72 K C
• 7.2 K D

The bonding between the semi-conductor materials is

• covalent A
• ionic B
• either of them C
• none of them D

Which of the following can become a good temporarily magnet?

• iron A
• steel B
• both of them C
• none of them D

The combination of solenoid and a specimen of iron inside it make a power full magnet called

• Horse shoe magnet A
• Bar magnet B
• Electromagnet  C
• 10^-10 to 10¹⁸ D

The maintaining the elastic limits of any body, the relation stress to strains is called

• Hooke's law A
• Pascal's law B
• Young's law C
• None of them D

Shear modulus for lead is

• 1.7 A
• 4.9 B
• 5.6 C
• 6.2 D