When a weight of 10 kg is suspended from a copper wire of length 3 met – McqOptions

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1.	When a weight of 10 kg is suspended from a copper wire of length 3 metres and diameter 0.4 mm, its length increases by 2.4 cm. If the diameter of the wire is doubled, then the extension in its length will be [MP PMT 1994]
A.	9.6 cm
B.	4.8 cm
C.	1.2 cm
D.	0.6 cm
Answer» E.

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