Physics Of Solids Mcqs

This collections of Multiple choice questions and answers focuses on study of Physics Of Solids. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Physics Of Solids comprehensively.

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Computer MCQS

Sciences MCQS

1.
A certain stress applied to an elastic material produces a certain strain in it. If the elastic limit is not exceeded the energy gained per unit volume of the material is given by

Stress/strain

(stress/strain)

Stress x strain

(Stress / strain)

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3.
A ferromagnet will become fully magnetized at

High voltage A.C

Low voltage A.C

Alternating current at its peak value

D.C current at peak value

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4.
A wire of length L is stretched by a length ? when a force F is applied at one end. If the elastic limit is not exceeded the amount of energy stored in the wire is

F?

(F?)

F? 2/L

F?2

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5.
A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber?

2x108 Nm-2

5x106 Nm-2

0.5x10-6 Nm-2

0.2x10-6Nm-2

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6.
A uniform steel wire of length 4m and area of cross-section 3×10-6m2 is extended by 1mm by the application of a force. If the youngs modulus of steel is 2×1011 Nm-2 the energy stored in the wire is

0.025J

0.50J

0.75J

0.100J

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7.
A vacant or partially filled band is called

Conduction band

Valence band

Forbidden band

Empty band

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8.
A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is

The extension of the wire is proportional to the force applied

The weight of the wire is negligible

The wire is not stretched beyond its elastic limit

The cross sectional area of the wire remains constant

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9.
A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is

(F1+F2) (121+122)

(F1+F2) (122-112)

(F1+F2) (12-11)

(F1+F2) (12-11)

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10.
A wire suspended vertically from one end is stretched by attaching a weight of 20N to the lower end. The weight stretches the wire by 1mm. How much energy is gained by the wire?

0.01J

0.02J

0.04J

1.0J

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11.
Any alteration produced in shapes length or volume when a body is subjected to some external force is called

Stiffness

Toughness

Extension

Deformation

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12.
Coercive force is the force which opposes

Demagnetization

Breakage

Extension

Surface cracking

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13.
Energy needed to magnetize and demagnetize is represented by

Hysteresis curve

Hysteresis loop area

Hysteresis loop

Straight line

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14.
Formation of large molecule by joining small molecules is

Fusion

Polymerization

Crystallization

Subtraction

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Engineering MCQS

General Subjects MCQS

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