How much force is required to produce an increase of $0.2\%$ in the length of a brass wire of diameter $0.6\, mm$ (Young’s modulus for brass = $0.9 \times {10^{11}}N/{m^2}$)
  • ANearly $17 \,N$
  • BNearly $34 \,N$
  • CNearly $51 \,N$
  • DNearly $68\, N$
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