Physics

Physics

Problem

When two sound waves of close frequencies f1f_1 and f2f_2 interfere, the time interval Δt\Delta t between successive amplitude maxima is a) ∣1f1−1f2∣\Bigl|\dfrac{1}{f_1}-\dfrac{1}{f_2}\Bigr| b) 1∣f1−f2∣\dfrac{1}{|f_1-f_2|} c) 2∣f1−f2∣\dfrac{2}{|f_1-f_2|} d) 1f1+f2\dfrac{1}{f_1+f_2}

Browse the problem library