A wire of length 2m is made from 10 cm^3 of copper. A force F is … - Vidyadip

MCQ

A wire of length $2m$ is made from $10\ cm^3$ of copper. A force $F$ is applied so that its length increases by $2\ mm.$ Another wire of length $8m$ is made from the same volume of copper. If the force $F$ is applied to it, its length will increase by:

A
$0.8\ cm$
B
$1.6\ cm$
C
$2.4\ cm$
✓
$3.2\ cm$

✓

Answer

Correct option: D.

$3.2\ cm$

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