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

The temperature at which, semiconductor behaves as insulators:

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10k

0k

237k

None of above

The crystalline structure of NaCl is.

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Cubical

Hexagonal

Tri gonal

Tetragonal

Yield stress is another name of

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Plasticity

Proportional limit

Elastic limit

Both (b) and (c)

Conductors have conductivities of order:

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10³(Ωm)-1

10⁷(Ωm)^-1

10⁷Ωm^-1

10^-6Ω

Shear modulus is expressed as:

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G = tanθ/F/A

F/A/tanθ

F/tanθ

tanθ/A

Which one is pentavalent impurity

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Boron

Gallium

Antimony

Indium

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

In glass, molecules are irregularly arranged so it is known as.

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Solid

Liquid

Solid liquid

Gas

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

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