Physics · 2012
NEET 2012 · Prelims · Code A · Q15
Two sources of sound placed close to each other, are emitting progressive waves given by y_1=4 sin 600 π t and y_2=5 sin 608 π t An observer located…
Two sources of sound placed close to each other, are emitting progressive waves given by
$\displaystyle y_1=4 \sin 600 \pi \mathrm{t}$ and $\displaystyle y_2=5 \sin 608 \pi \mathrm{t}$
An observer located near these two sources of sound will hear :
Official answer
(2)
$\displaystyle 4$ beats per second with intensity ratio $\displaystyle 81$ : $\displaystyle 1$ between waxing and waning
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