# Physics of Solids FSC Class Book MCQs

FSC Physics MCQs Part 1 Physics Part 2 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs

[quiz]
[question]
Which of the following substances posses the highest elasticity?
A. Rubber B. Steel
C. Glass D. Copper
[/question]
[explanation]B[/explanation]
[/quiz]

[quiz]
[question]
The figure shown the stress-strain graph of a certain substance. Over which region of the graph is Hooks law obeyed?
A. AB B. BC
C. CD D. ED
[/question]
[explanation]D[/explanation]
[/quiz]

[quiz]
[question]
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?
A. 2×108 Nm-2 B. 5×106 Nm-2
C. 0.5×10-6 Nm-2 D. 0.2×10-6Nm-2
[/question]
[explanation]B[/explanation]
[/quiz]

[quiz]
[question]
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?
A. 0.01J B. 0.02J
C. 0.04J D. 1.0J
[/question]
[explanation]A[/explanation]
[/quiz]

[quiz]
[question]
The ration stress to strain in youngs modulus of the material then tension is
A. Directly proportional to extension. B. Directly proportional to strain.
C. Directly proportional to square of amplitude. D. Inversely proportional to extension.
[/question]
[explanation]A[/explanation]
[/quiz]

[quiz]
[question]
A wire is stretched by a force F which causes an extension 1. The energy stored in the wire is
A. The extension of the wire is proportional to the force applied B. The weight of the wire is negligible
C. The wire is not stretched beyond its elastic limit D. The cross sectional area of the wire remains constant
[/question]
[explanation]A[/explanation]
[/quiz]

[quiz]
[question]
Formation of large molecule by joining small molecules is
A. Fusion B. Polymerization
C. Crystallization D. Subtraction
[/question]
[explanation]B[/explanation]
[/quiz]

[quiz]
[question]
The curie temperature is that at which
A. Semi-conductor becomes conductors B. Ferromagnetic becomes paramagnetic
C. Paramagnetic becomes diamagnetic D. Metals become super conductor
[/question]
[explanation]B[/explanation]
[/quiz]

[quiz]
[question]
The breaking of crystals along definite direction is called
A. Cleavage B. Symmetry
C. Isotropy D. Homogeneity
[/question]
[explanation]A[/explanation]
[/quiz]

[quiz]
[question]
The band theory of solids explains satisfactorily the nature of
A. Electrical insulators alone B. Electrical conductors alone
C. Electrical semi conductors alone D. All of the above
[/question]
[explanation]D[/explanation]