An elongation of 0.2% in a wire of cross-section 10^-4 m^2 causes a tension of 1000 N.
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
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