Question 73: Waves

Question

Two waves $y_1=\mathrm{A} \cos (0.5 \pi x-100 \pi t)$ and $y_2=\mathrm{A} \cos (0.467 \pi x-92 \pi t)$ are travelling in a pipe placed along $x$-axis.

Accepted Answer

Average frequency of wave after superposition will be
$$ f=\frac{f_1+f_2}{2}=\frac{100+92}{2}=96 \mathrm{~Hz} $$

Answer

100

Answer

46

Answer

192

Answer

96

Waves

Two waves y_1=\mathrm{A} \cos (0.5 \pi x-100 \pi t) and y_2=\mathrm{A} \cos (0.467 \pi x-92 \pi t) are travelling in a pipe placed along x-axis.

Choose the correct answer: