The number of beats heard per second when two tuning forks of nearly equal…

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

The number of beats heard per second when two tuning forks of nearly equal frequencies are sounded together is equal to (a)

\dfrac{f_1+f_2}{2}

(b)

\lvert f_1-f_2\rvert

(c)

2\lvert f_1-f_2\rvert

(d)

f_1+f_2