A) 253.5 Hz
B) 258.5 Hz
C) 260 Hz
D) 252 Hz
Correct Answer: C
Solution :
nA = Known frequency = 256 Hz, nB = ? x = 4 beats per sec which is decreasing (4 bps to ) after loading (i.e. x¯) Unknown tuning fork B, is loaded so nB¯ Hence nA ? nB¯ = x¯ ... (i) Wrong nB¯ ? nA = x¯ ... (ii) Correct Þ nB = nA + x = 256 + 4 = 260 Hz.You need to login to perform this action.
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