A wire has a young’s modulus of 105N/m2, length 1m & radius 3mm. As – McqOptions

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1.	A wire has a young’s modulus of 105N/m2, length 1m & radius 3mm. Assuming a uniform cross sectional area, find the radius of wire after it is under a force of 1N from both ends.
A.	2.58m
B.	2.30m
C.	3.54m
D.	2.24m
Answer» B. 2.30m

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