NEET UG PHYSICS MCQ: MECHANICAL PROPERTIES OF SOLIDS

1 Easy

1 of 1

Application +4 | -1

A steel wire is

1 \mathrm{~m}

long and

1 \mathrm{~mm}^2

in area of crosssection. If it takes

200 \mathrm{~N}

to stretch this wire by

1 \mathrm{~mm}

, how much force will be required to stretch a wire of the same material as well diameter from its normal length of

10 \mathrm{~m}

to a length of

1002 \mathrm{~cm}

View answer and explanation

Correct option: A

400

The correct answer is 400 because the force required is proportional to the change in length and inversely proportional to the original length.

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