A) 257
B) 258
C) 256
D) 254
Correct Answer: D
Solution :
nA = Known frequency = 256, nB = ? x = 2 bps, which is decreasing after loading (i.e. x¯) known tuning fork is loaded so nA¯ Hence nA¯ ? nB = x¯ ... (i) Correct nB ? nA¯ = x¯ ... (ii) Wrong Þ nB = nA ? x = 256 ? 2 = 254 Hz.You need to login to perform this action.
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