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One end of a long mettalic wire of lengt...

One end of a long mettalic 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

A

`2 pi sqrt(n//K)`

B

`2 pi sqrt(m(YA+kL)//Yak)`

C

`2 pi sqrt(mYA//kL)`

D

`2 pi sqrt(mL//YA)`

Text Solution

Verified by Experts

The correct Answer is:
B
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