1.

One end of a long metallic wire of length L is tied to the ceiling. The other end is tied to massless spring of spring constant K. A mass (m) hangs freely from the free end of the spring. The area of cross-section and young's modulus of the wire are A and Y respectively. If the mass is slightly pulled down and released it will oscillate with a time period T equal to

Answer» <html><body><p>`2pi <a href="https://interviewquestions.tuteehub.com/tag/sqrt-1223129" style="font-weight:bold;" target="_blank" title="Click to know more about SQRT">SQRT</a>((m)/( <a href="https://interviewquestions.tuteehub.com/tag/k-527196" style="font-weight:bold;" target="_blank" title="Click to know more about K">K</a>))`<br/>`2pi sqrt((m(YA + KL) )/( YAK))`<br/>`2pi sqrt((<a href="https://interviewquestions.tuteehub.com/tag/mya-2186336" style="font-weight:bold;" target="_blank" title="Click to know more about MYA">MYA</a>)/( KL))`<br/>`2pi sqrt((<a href="https://interviewquestions.tuteehub.com/tag/ml-548251" style="font-weight:bold;" target="_blank" title="Click to know more about ML">ML</a>)/( YA))`</p>Answer :B</body></html>


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