Question # 1

The magnetism produced by electrons within an atom can arise from

Choose an answer

electrons orbiting the nucleus

electrons posses a spin

both motions

none of these motions

Tick the one which is not a crystalline solid:

Choose an answer

Zirconia

Glass

Copper

Ceramic solid

An ionic compound

In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called

Choose an answer

Young's modulus

Bulk modulus

Shear modulus

all of them

When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called

Choose an answer

energy bands

energy shells

states

all of them

An ordinary glass gradually softens into a 'paste -like' state before it becomes a very viscous liquid. It happens almost at:

Choose an answer

800^oC

500^oC

300^oC

100^oC

None of these

The doped semi-conductor materials are known as

Choose an answer

intrinsic semi-conductor

extrinsic semi-conductor

either of them

none of them

In a semi-conductor material, current flows due to

Choose an answer

positive charge

negative charge

both of them

none of them

The measure of the deformation in a solid when stress is applied to its is called

Choose an answer

elastic constant

young's modulus

strain

elasticity

The smallest three dimensional basic structure in a crystalline solid is called

Choose an answer

lattice point

crystal lattice

cubic crystal

unit cell

The transition from solid state to liquid state is:

Choose an answer

Abrupt

Slow

Continous

Discontinous

Both (A) and (D)

Whenever a covalent bond is broken in an intrinsic semi-conductor

Choose an answer

hole is created

an electron is created

an electron-hole pair is generated

all of them

The conduction band in a solid

Choose an answer

may be empty

cannot be empty

should be filed

all of them

Recently a complex crystalline structure known as Yetrium Barium Copper Oxide have been reported to become superconductor at

Choose an answer

125 K

25 K

263 K

163 K

Amorphous solids:

Choose an answer

Have definite melting points

Are called glassy solids

Have no definite melting point

Both (B) and (C)

Both (A) and (C)

The substances in which, atom are so oriented that their fields support each other and the atoms behave like tiny magnets, are called

Choose an answer

diamagnetic substances

ferromagnetic substances

paramagnetic substances

all of them

Synthetic materials fall into the category of

Choose an answer

crystalline solids

amorphous

polymeric solids

all of them

More Classes

Other Links

Physics ECAT Pre Engineering Chapter 17 Physics of Solid Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer