Physics · 2013
NEET 2013 · 18 May · Code Y · Q110
Two sources P and Q produce notes of frequency 660 Hz each. A listener moves from P to Q with a speed of 1 ms^-1. If the speed of sound is 330 m / s,…
Two sources P and Q produce notes of frequency $\displaystyle 660$ Hz each. A listener moves from P to Q with a speed of $\displaystyle 1 \mathrm{~ms}^{-1}$. If the speed of sound is $\displaystyle 330 \mathrm{~m} / \mathrm{s}$, then the number of beats heard by the listener per second will be :
Official answer
(3)
$\displaystyle 4$
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NEET (UG) 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.