The Young’s modulus of a wire of length $L$ and radius $r$ is $Y{\rm{ }}N/{m^2}$. If the length and radius are reduced to $L/2$ and $r/2$, then its Young’s modulus will be

NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

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The Young’s modulus of a wire of length

L

and radius

r

Y\mathrm{ }N/{m^2}

. If the length and radius are reduced to

L/2

and

r/2

, then its Young’s modulus will be

View answer and explanation

Correct option: B

Y

Option B (

Y

) is correct because Young's modulus is a material property and does not depend on the dimensions of the wire.

Practice All Chapter MCQs →

1\,m{m^2}

N/{m^2}

\left[ {g = 10\,m{s^{ - 2}}\,} \right]\,

\mathrm{1 mm}

2\,\,m

1\,\,cm

0.8

Y

\mathrm{K}

\eta