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
(7)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)