अनुनाद (resonance) की स्थिति में, एक प्रणोदित आवर्ती दोलक (forced harmonic oscillator) में चालक बल और वेग के बीच कलांतर (phase difference) कितना होता है?

Which of the following statements is/are correct? 1. Damped oscillation is defined as a reduction in the amplitude of an oscillating system, caused by the dissipation of energy. 2. The rate at which the total mechanical energy reduces in a simple damped harmonic oscillator is directly proportional to the instantaneous amplitude.

The vibrations of an electrically maintained tuning fork are classified as: