Resonance in a system, such as a string fixed at both ends, occurs when
A. it is oscillating in simple harmonic motion.
B. its frequency is the same as the frequency of an external source.
C. its frequency is greater than the frequency of an external source.
D. its frequency is smaller than the frequency of an external source.
Answer:B
Resonance in a system, such as a string fixed at both ends, occurs when
A. it is oscillating in simple harmonic motion. B. its frequency is the same as the frequency of an external source. C. its frequency is greater than the frequency of an external source. D. its frequency is smaller than the frequency of an external source.