question_answer

If the differential equation given by \[\frac{{{d}^{2}}y}{d{{t}^{2}}}+\,2K\frac{dy}{dt}+\,{{\omega }^{2}}y={{F}_{0}}\sin pt\]describes the oscillatory motion of body in a dissipative medium under the influence of a periodic force, then the state of maximum amplitude of the oscillation is a measure of

A)  free vibration                  

B)  damped vibration

C)  forced vibration              

D)  resonance