A helical coil spring of stiffness k is cut to two equal halves and then these are connected in parallel to support a vibrating mass m. The angular frequency of vibration, ωn is

A helical coil spring of stiffness k is cut to two equal halves and th

1.	A helical coil spring of stiffness k is cut to two equal halves and then these are connected in parallel to support a vibrating mass m. The angular frequency of vibration, ωn is
A.	\(\sqrt {\frac{k}{m}} \)
B.	\(\sqrt {\frac{2k}{m}} \)
C.	\(\sqrt {\frac{4k}{m}} \)
D.	\(\sqrt {\frac{k}{4m}} \)
Answer» D. \(\sqrt {\frac{k}{4m}} \)

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A helical coil spring of stiffness k is cut to two equal halves and then these are connected in parallel to support a vibrating mass m. The angular frequency of vibration, ωn is

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