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0 votes
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in Physics by (86.6k points)
A wire whose cross-sectional area is `4mm^(2)` is streched by `0.1mm` by a certain load. If a similar wire of double the area of cross-section is under the same load, then the elongation would be
A. `0.5mm`
B. `0.05mm`
C. `0.005mm`
D. `5mm`

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1 Answer

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by (85.9k points)
Correct Answer - B
`e = (Fl)/(AY) = (Mgl)/(AY), e alpha (1)/(A)`

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