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Physics
Physics
Problem
The number of beats heard per second when two tuning forks of nearly equal frequencies are sounded together is equal to a)
f
1
+
f
2
2
\dfrac{f_1+f_2}{2}
2
f
1
+
f
2
b)
∣
f
1
−
f
2
∣
\lvert f_1-f_2\rvert
∣
f
1
−
f
2
∣
c)
2
∣
f
1
−
f
2
∣
2\lvert f_1-f_2\rvert
2
∣
f
1
−
f
2
∣
d)
f
1
+
f
2
f_1+f_2
f
1
+
f
2
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