A wire extends by 1 mm when a force is applied. Double the force is ap – McqOptions

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1.	A wire extends by 1 mm when a force is applied. Double the force is applied to another wire of same material and length but half the radius of cross-section. The elongation of the wire in mm will be [EAMCET 1986]
A.	8
B.	4
C.	2
D.	1
Answer» B. 4

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