The disturbance on a free undamped system determines its nat

The disturbance on a free undamped system determines its natural frequency of vibration. (B) Damping increases the frequency of vibration when compared to the undamped system. (C) Resonance occurs in the absence of an external harmonic force. (a) Statements (A) and (B) only are correct. b) Statement (A) only is correct. (c) None of the statements is correct. (d) Statement (B) only is correct. (e) Statement (C) only is correct.

Solution

only A is correct