Sound interference is necessary to produce the phenomenon of
A.
beats
B.
doppler effect
C.
acoustic resonance
D.
echo
Answer: A
To see detailed solution to this question and thousands of other questions offline, download TestDriller SSCE. Practice rigorously for WASSCE, enjoy educational games, get chief examiners' reports, summary of WAEC literature books, compete with your peers, win prizes and more.