What is the expression for the beat frequency produced when two sound sources of…

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

Problem

What is the expression for the beat frequency produced when two sound sources of frequencies

f_1

and

f_2

are sounded together? (a)

f_{\text{beat}} = \dfrac{|f_1-f_2|}{2}

(b)

f_{\text{beat}} = |f_1-f_2|

(c)

f_{\text{beat}} = \dfrac{f_1+f_2}{2}

(d)

f_{\text{beat}} = f_1+f_2