When a tuning fork A of unknown frequency is sounded with another tuning fork B of frequency 256 Hz, then 3 beats per second are observed. After that A is loaded with wax and sounded, the again 3 beats per second are observed. The frequency of the tuning fork A is
It is given that
nA = Unknown frequency = ?
nB = Known frequency = 256 Hz
x = 3 bps, which remains same after loading
Unknown tuning fork A is loaded so nA
Hence nA – nB = x ... (i) Correct
nB – nA = x ... (ii) Wrong
nA = nB + x = 256 + 3 = 259 Hz.