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Two sound waves of frequencies and travel through the same air column and are heard…
PHYSICS · Single correct · CBSE · Physics · Waves · Waves
Problem
Two sound waves of frequencies
f
1
f_1
f
1
and
f
2
f_2
f
2
travel through the same air column and are heard simultaneously. The beat frequency detected by a listener is given by which of the following expressions? (a)
f
1
+
f
2
f_1 + f_2
f
1
+
f
2
(b)
∣
f
1
−
f
2
∣
|f_1 - f_2|
∣
f
1
−
f
2
∣
(c)
f
1
+
f
2
2
\dfrac{f_1 + f_2}{2}
2
f
1
+
f
2
(d)
f
1
−
f
2
f_1 - f_2
f
1
−
f
2
Related theory
Beats
Wave Superposition
Waves
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