Question # 1

After curie temperature.

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Ferromagnetic

Paramagnetic

Magnetic

Diamagnetic

Conductors have conductivities of order:

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10³(Ωm)-1

10⁷(Ωm)^-1

10⁷Ωm^-1

10^-6Ω

A cable breaks if stretched by more than 2mm. It is cut into two equal parts. How much either part can be stretched without breaking?

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25 m

1mm

2mm

0.5 m

The material whose resistivity becomes zero below a certain temperature

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Conductors

Semi conductors

Super conductors

Insulators

Donor impurities are

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Germanium, silicon

Indium, galium

Antimony, arsenic

Diamond, carbon

The dimension of stress is

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[MLT^-1]

[ML^-1T]

[ML^-1T^-1]

[ML^-1T^-2]

Those materials whose resistivity becomes zero at certain temperature is called:

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Semiconductor

Super conductor

Conductor

Insulator

Very weak magnetic field produced by brain can be detected by

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MRI

CAT scans

Squid

CRO

Curie temperature is a point where :

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Diamagnetism changes to paramagnetism

Paramagnetism changes to Diamagnetism

Ferromagnetism changes to paramagnetism

Paramagnetism changes to Ferromagnetism

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

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Diamagnetic

Para magnetic

Ferro magnetic

Crystal

A solid in which there is not regular arrangement of molecules is called.

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Glassy solid

Amorphous solid

Crystalline solid

Both a and b

The critical temperature of Aluminum is.

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3.72 K

1.18 K

7.2 K

8.2 K

Which one of the following is ductile substance.

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Copper

Lead

Wrought iron

All of them

Young's modulus for water's is

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Zero

1

2

3

At 0 K a piece of silicon is a

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Conductor

Semi-conductor

Insulator

All

The unit of strain is:

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Nm

Nm^-2

no unit

Nm²

Shear modulus is expressed as:

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G = tanθ/F/A

F/A/tanθ

F/tanθ

tanθ/A

Glass and high steel carbon are example of.

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Ductile substances

Brittle substances

Soft substances

Hard substances

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Physics Fsc Part 2 Chapter 6 Online Test MCQs With Answers

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