engineering recuitment HPCL Engineer Mock Test 2024 Mechanical Vibrations Undamped Free Vibration Simple Mass System
A simple spring mass system has a natural frequency of N. If the spring stiffness becomes \(\frac{1}{4}\) and the mass is doubled, then the natural frequency becomes ______.
1
\(\frac{N}{2\sqrt{2}}\)
2
\(2N\)
3
\(\frac{N}{2}\)
4
\(2\sqrt 2 N\)