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Properties of Matter question

2023 · 15 Apr · Shift 1 · Q45

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JEE Main
Physics
Properties of Matter
2023 · 15 Apr · Shift 1 · Q45

Properties of Matter question

2023 · 15 Apr · Shift 1 · Q45

JEE MainPhysicsProperties of MatterMCQ+4 / −1

A wire of length '

L

' and radius '

r

' is clamped rigidly at one end. When the other end of the wire is pulled by a force

f

, its length increases by '

l

'. Another wire of same material of length '

2 \mathrm{~L}

' and radius '

2 r

' is pulled by a force '

2 f

'. Then the increase in its length will be :

A
$2 l$
B
$4 l$
C
$l$
D
$l / 2$

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