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95. How much force is required to produce an increase of

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 =0.9×1011 N/m2 )

(a) Nearly 17 N                           (b)   Nearly 34 N

(c) Nearly 51 N                          (d)   Nearly 68 N

Answer-c

(6)

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