One end of a long metallic wire of length L is tied to the ceiling. The other end is tied…
Physics · JEE Advanced · NTA Exams — Oscillations and Waves
One end of a long metallic wire of length L is tied to the ceiling. The other end is tied to a massless spring of spring constant k. A mass m hangs freely from the free end of the spring. The area of cross-section and the 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
- 2p(m/k)1/2
- 2p(mYA/kL)1/2
- 2p(mL/YA)1/2.
Answer
(B)
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