Q. Three sound waves of equal amplitude have frequencies (v-1),v,(v+1). They superpose to give beat. The number of beats produced per second will be
A) 4
B) 3
C) 2
D) 1
Explanation
(c) Maximum number of beats =v+1-(v-1)=2
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.