The frequencies of two tuning forks 
and 
are respectively 
more and 
less than that of the tuning fork 
. When 
and 
are sounded together, 12 beats are produced in 1 s. The frequency of the tuning fork 
is
Text Solution
Verified by ExpertsThe correct answer is:
D
Let the frequency of tuning fork 
is 
.
The frequency of tuning fork 
The frequency of tuning fork 
Beat frequency of tuning fork A and B is
Thus, 
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