engineering recuitment BEL Probationary Engineers Mock Test 2025 Mechanical Vibrations Forced Vibration Transmissibility and Magnification Factor
A single-degree-of freedom oscillator is subjected to harmonic excitation F(t) = F0 cos(ωt) as shown in the figure.
The non-zero value of ω, for which the amplitude of the force transmitted to the ground will be F0, is
1
\(\sqrt {\frac{k}{{2m}}}\)
2
\(\sqrt {\frac{k}{m}}\)
3
\(\sqrt {\frac{{2k}}{m}}\)
4
\(2\sqrt {\frac{k}{m}}\)