NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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Application +4 | -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

View answer and explanation

Correct option: D

0.6\,cm

Option D (

0.6\,cm

) is correct because the extension is inversely proportional to the square of the diameter.

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