Question: A simple spring mass vibrating system has a natural frequency of (N). If the spring stiffness is halfed and the mass is doubled, then the

A simple spring mass vibrating system has a natural frequency of $N$. If the spring stiffness is halfed and the mass is doubled, then the natural frequency will become

(a) $N / 2$

(b) $2 N$

(c) $4 N$

(d) $8 \mathrm{~N}$

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