Question Detail

PHY 104 Oscillatory Motion Objective Question

Question

Which of the following best describes the Quality Factor (Q-factor) of an oscillator?
Options
A A measure of the total energy stored in the system.
B The ratio of energy dissipated per cycle to the energy stored.
C A dimensionless quantity representing the ratio of energy stored to energy dissipated per cycle.
Correct Answer
D The total number of oscillations before the energy drops to zero.
Correct Answer

Option C is the correct answer.

Detailed Explanation

The 'Quality factor and Fractional Energy Loss' section on page 22 states: 'Q is simply a number which is a measure of damping... Q = Energy stored in the oscillator / Energy dissipated per cycle/radian'. This matches option C.

Hint

It quantifies how 'good' an oscillator is at maintaining its energy over time.

Question Info