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60. The force required to stretch a steel wire of cross-section

The force required to stretch a steel wire of cross-section 1 cm2 to 1.1 times its length would be(Y=2×1011 N/m2)

(a)  2×106 N                           (b)    2×103 N

(c)   2×10-6 N                         (d)  2×10-7 N

Answer-a

(7)

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