Three sound waves of equal amplitudes have frequencies (v - 1), v, (v + 1). They superpose to give beats. The number of beats produced per second will be:

Oscillations and Waves: JEE Main 2009 Physics question

JEE Main 2009 · Annual, Paper 1 · Q8543

JEE Main 2009Annual, Paper 1PhysicsEasyOscillations and Waves185× since 2002

Three sound waves of equal amplitudes have frequencies

\left( {v - 1} \right),\,v,\,\left( {v + 1} \right).

They superpose to give beats. The number of beats produced per second will be :

JEE Main 2009 · Annual, Paper 1 · Q8543

JEE Main 2009Annual, Paper 1PhysicsEasyOscillations and Waves185× since 2002

Three sound waves of equal amplitudes have frequencies

\left( {v - 1} \right),\,v,\,\left( {v + 1} \right).

They superpose to give beats. The number of beats produced per second will be :