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

One end of a long metallic wire of length L is tied to the ceiling. Th

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» `2pi SQRT((m)/( K))` `2pi sqrt((m(YA + KL) )/( YAK))` `2pi sqrt((MYA)/( KL))` `2pi sqrt((ML)/( YA))` Answer :B