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

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 slighty pulled down and released , it will oscillate with a time period T equal to

A

`2pisqrt((m)/(k))`

B

`2pisqrt((m(YA+kL))/(YAk))`

C

`2pisqrt((mYA)/(kL))`

D

`2pisqrt((mL)/(YA))`

Text Solution

Verified by Experts

The correct Answer is:
B
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