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The force required to stretch a steel wire 1 cm^2 in cross section to double its length is (given Y = 2 xx 10^(11) Nm^(-2)) ………. .

Answer» <html><body><p>(a) `10^(<a href="https://interviewquestions.tuteehub.com/tag/7-332378" style="font-weight:bold;" target="_blank" title="Click to know more about 7">7</a>) N`<br/>(b) `2 xx 10^(7) N`<br/>(<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a>) `10^(11) N`<br/>`(d) 2 xx 10^(11) N`</p>Solution :`<a href="https://interviewquestions.tuteehub.com/tag/f-455800" style="font-weight:bold;" target="_blank" title="Click to know more about F">F</a> = (YA Delta l)/(l), "Here" Deltal = l <a href="https://interviewquestions.tuteehub.com/tag/implies-1037962" style="font-weight:bold;" target="_blank" title="Click to know more about IMPLIES">IMPLIES</a> F = YA` <br/> `F = 2 xx 10^(11) xx 10^(-<a href="https://interviewquestions.tuteehub.com/tag/4-311707" style="font-weight:bold;" target="_blank" title="Click to know more about 4">4</a>) = 2 xx 10^(7) N`</body></html>


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