Amplitude of vibration is `A = (F_(0))/(p-q+r)` . Resonance will occur when

Resonance occurs when

Amplitude of a wave is represented by A(c)/(a+b+c) Then resonance will occur when

If amplitude of a wave is represented by A=(c )/(a+b-c) . Then the resonance will occur when.

(A) : Resonance is a special case of forced vibration in which the natural frequency of vibrations of the body is the same as the impressed frequency and the amplitude forced vibration is maximum. (R) The amplitude of forced vibration of a body increases with an increase in the frequency of the externally impressed periodic force.