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Question:
When a weight of 5 kg is suspended from a copper wire of length 30 m and radius 0.5 mm the length of the wire increases by 2.4 cm. If the radius is doubled the extension produced is:

1.1.2 cm

2.0.6 cm

3.0.3 cm

4.0.15 cm

Posted Date:-2021-09-26 06:05:18

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