The periodic rise and fall in the intensity of sound produced whn two notes of nearly equal frequencies are sounded together is called?
A
doppler effect
B
beat
C
interference
D
resonance
Verified Correct Answer: B.
Physical Principles & Numerical Solution
beat, in physics, the pulsation caused by the combination of two waves of slightly different frequencies.
Source: WAEC / JAMB / NECO Classroom Archive (Record #63284)