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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

`T = 2pi sqrt((ml_(0))/(YA))`

B

`T= 2pi sqrt((m)/(k))`

C

`T= 2pi sqrt((k)/(m))`

D

`T= 2pi sqrt((m(AY+ kl_(0)))/(YAK))`

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