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A Steel wire is 1m long and 1mm^(2) in a...

A Steel wire is `1m `long and `1mm^(2)` in area of cross-section. If it takes `200N` to streach this wire by `1mm`, the forces that will be required to stretch the wrie of the same material and cross-sectional area form a length of `10m` to `1002cm`

A

`100N`

B

`200N`

C

`400N`

D

`2000N`

Text Solution

Verified by Experts

The correct Answer is:
C
`F = (Yae)/(l), (F_(1))/(F_(2)) = (l_(2))/(l_(1)) (e_(2))/(e_(1))`
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