two sounds of very close frequency 256Hz and 260 Hz are produced simultaneously what is the frequency of resultant sound and also write the number of beats heared in 1sec
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Beats per second = 260-256 =4 beats/sec
Resultant sound have two frequency components
f1= 260+2562 = 258Hzand f2 =260−2562 = 2 Hzf1= 260+2562 = 258Hzand f2 =260-2562 = 2 Hz
Phase difference δ(t=1/ 16 sec), δ=2πf×t=2π×2×1/ 16 = π /4
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