Question # 1

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

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Diamagnetic

Para magnetic

Ferro magnetic

Crystal

After curie temperature.

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Ferromagnetic

Paramagnetic

Magnetic

Diamagnetic

Donor impurities are

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Germanium, silicon

Indium, galium

Antimony, arsenic

Diamond, carbon

In extrinsic semiconductors doping is of the order of.

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1 atom to 10⁴

1 atom to 10⁶

1 atom to 10⁸

1 atom to 10³

There is regular arrangement of molecules in:

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Amorphous solids

Crystalline solids

Both a and b

None of above

Minority carriers in P-Types , substances are.

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Electrons

Protons

Holes

Neutrons

The most suitable metal for making permanent magnet is.

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Iron

Aluminium

Steel

Copper

Very weak magnetic field produced by brain can be detected by

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MRI

CAT scans

Squid

CRO

The ratio of applies stress to volumetric strain is called:

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Young modulus

Shear modulus

Bulk modulus

Tensile modulus

Which of the following has least hysteresis loop area.

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Steel

Wrought Iron

Soft Iron

Cobalt

Semiconductors have conductivity of order:

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10^-8 to 10^-6 (Ωm)^-1

10^-6 to 10^-4 (Ωm)^-1

10² to 10⁵ (Ωm)^-1

10^-5 to 10^-7 (Ωm)^-1

Which one is not a ductile material

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Lead

Steel

Copper

Wrought Iron

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

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2

1

0

0.5

Which of the following has bulk modulus?

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Water

Gas

Honey

All

In 'N' type material, the minority charge carriers are.

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Free electrons

Holes

Protons

Mesons

The first superconductor was discovered in:

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1831

1911

1921

1876

The crystalline structure of NaCl is.

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Cubical

Hexagonal

Tri gonal

Tetragonal

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

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