A) 250 Hz
B) 252 Hz
C) 260 Hz
D) 262 Hz
Correct Answer: B
Solution :
Given,\[{{n}_{A}}=256\,\,Hz\] \[\therefore \]Possible frequencies of tuning fork \[B=256\pm 4\] \[=260\,\,or\,\,252\,\,Hz\] On loading wax on tuning fork\[A\], its frequency will decrease. Now, 2 beats/s are obtained. This is possible only when rig \[=252Hz.\]You need to login to perform this action.
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