Multiple Choice Question (MCQ)
Question: What is the youngs modulus if a wire of 2m long, 0.8 mm2 in cross section increases its length by 1.6 mm on suspension of 8 kg weight from it?
A.
1.25 kg/mm<sup>2</sup>
B.
12.5 kg /mm<sup>2</sup>
C.
125 kg/mm<sup>2</sup>
D.
12500 kg/mm<sup>2</sup>
Correct Answer: 12500 kg/mm<sup>2</sup>