engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Mechanical Vibrations Undamped Free Vibration Vibration of Beam and Pendulum
Natural frequency (rad/s) of mass M on the free end of a cantilever beam of negligible mass length L and flexural rigidity EI (fig.) is
1
\(\sqrt {\frac{{EI}}{{3M{L^3}}}} \)
2
\(\frac{1}{3}\sqrt {\frac{{EI}}{{M{L^3}}}} \)
3
\(\sqrt {\frac{{3EI}}{{M{L^3}}}} \)
4
\(\sqrt[3]{{\frac{{EI}}{{M{L^3}}}}}\)