Question # 1

Which of the modulus of elasticity is involved in compressing a rod to decrease its length ?

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Young's modulus

Bulk modulus

Modulus of elasticity

None of these

Which type of impurity is to be added to a pure semi conductor crystal to provide holes.

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Monovalent

Trivalent

Tetravalent

Pentavalent

A wire stretched to double of its length, its strain is:

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2

1

0

0.5

substance which undergo plastic deformation until they break are known as.

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Brittle substances

Ductile substance

Non magnetic substance

Magnetic substance

Which one is not a ductile material

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Lead

Steel

Copper

Wrought Iron

An ordinary glass gradually softness into a paste like state before it becomes a very viscous liquid which is possible at

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900^oC

600^oC

800^oC

100^oC

Minority carriers in P-Types , substances are.

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Electrons

Protons

Holes

Neutrons

The substance which atom cooperates with each other in such a way so as to exhibit a strong magnetic field is called.

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Ferromagnetic

Paramagnetic

Diamagnetic

Non magnetic

the substances in which the atoms do not form magnetic dipoles are called.

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Diamagnetic

Para magnetic

Ferro magnetic

Crystal

Energy band theory is based upon

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Hund's Rule

Heisenberg uncertainty principle

Bohr's atomic Model

Wave mechanical model

Yield stress is another name of

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Plasticity

Proportional limit

Elastic limit

Both (b) and (c)

Donor impurities are

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Germanium, silicon

Indium, galium

Antimony, arsenic

Diamond, carbon

Very weak magnetic field produced by brain can be detected by

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MRI

CAT scans

Squid

CRO

The crystalline structure of NaCl is.

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Cubical

Hexagonal

Tri gonal

Tetragonal

The word amorphous means:

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Regular structured

Without form or structure

Frozen structured

None of above

The unit of strain is:

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Nm

Nm^-2

no unit

Nm²

Insulators have:

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An empty conduction band

Al full valence band

A large energy gap

All of above

The ratio of applies stress to volumetric strain is called:

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Young modulus

Shear modulus

Bulk modulus

Tensile modulus

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Physics FSC Part 2 Chapter 17 Online MCQ's Test MCQs With Answers

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