An elongation of 0.2% in a wire of cross-section 10-4 m2 causes a tension of 1000 N. Then its Young’s modulus is
A. 6 × 108 N/m2
B. 5 × 109 N/m2
C. 108 N/m2
D. 107 N/m2
Answer:B
An elongation of 0.2% in a wire of cross-section 10-4 m2 causes a tension of 1000 N. Then its Young’s modulus is
A. 6 × 108 N/m2 B. 5 × 109 N/m2 C. 108 N/m2 D. 107 N/m2