Published by:
CGP EDU Academic Team
Published on: August 14, 2026
One end of a long vertical metallic wire of length 
is tied to the ceiling. The other end is tied to a massless spring of spring constant 
. A mass 
hangs freely from the free end of the spring. The area of cross-section and the Young's modulus of the wire are 
and 
respectively. If the mass is slightly pulled down and released, it oscillates with a time period equal to: (Assume wire mass is negligible)
A
B
. C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Spring constant of spring, 
Rod can be treated like a spring with spring constant 
.
For series connection
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