engineering recuitment HPCL Engineer Mock Test 2024 Mechanical Vibrations Undamped Free Vibration Vibration of Beam and Pendulum
The natural frequency of a simply supported beam of length l with mass M at its centre, flexural rigidity EI and negligible beam mass is
1
\(\frac{1}{2\pi }\sqrt{\frac{48EI}{M{{l}^{3}}}}\)
2
\(\frac{1}{2\pi }\sqrt{\frac{3EI}{M{{l}^{3}}}}\)
3
\(\frac{1}{2\pi }\sqrt{\frac{EI}{M{{l}^{3}}}}\)
4
None of the above