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Sunday, 21 February 2016

F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems

F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems

Numerical Problem: 17.1 A 1.25 cm diameter cylinder is subjected to a load of 2500 kg. Calculate the stress on the bar in mega pascals?
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain
Numerical Problem: 17.2 A 1.0 m long wire is subjected to stretching force and its length increases by 20 cm, Calculate the tensile strain and the percent elongation which the wire undergoes?
Numerical Problem: 17.3 A wire 2.5 m long and cross section are 10(-5) m(2) is stretched 1.5 mm by a force of 100 N in the elastic region. Calculate.
(i) Strain
(ii) Young's Modulus
(iii) The energy stored in wire = U =?
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 1
Numerical Problem: 17.4 What stress would cause a wire to increase in length by 0.01 % if the Young's Modulus of the wire is 12 * 10(10) Pa. What force would produce this stress if the diameter of wire is 0.56 mm?
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 2
Numerical Problem: 17.5 The length of a steel wire is 1.0 m and its cross sectional area is 0.03 * 10(-4) m(2). Calculate the work done in stretching the wire where force of 100 N is applied with in the elastic region. Young's Modulus of steel is 3 * 0 (11) Nm(-2).
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 3
Numerical Problem: 17.6 A cylindrical copper wire and a cylindrical steel wire each of length 1.5 and diameter 2.0 mm are joined one end to form a composite wire of 3.0 m long. The wire is loaded until its length becomes 3.003 m. Calculate the strain in copper and steel wire and the force applied to the wire. (Young's Modules of Copper is 1.2 * 10(11) Pa and for steel is 2.0 * 10(11) Pa).
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 4
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 5
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 6
F.Sc ICS Notes: Physics XII: Chapter 17 Physics of Solids Numerical Problems by Asad Hussain 7



Written by Asad Hussain


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