Physics

Problem

Wave X completes 8 oscillations in

0.032\,\text{s}

, while wave Y completes 9 oscillations in the same time. A simultaneous displacement–position snapshot shows crest–to–crest separations of

0.48\,\text{m}

for X and

0.38\,\text{m}

for Y. Which statement is correct? a) Wave Y travels faster and the beat frequency is about

31\,\text{Hz}

b) Wave X travels faster and the beat frequency is about

19\,\text{Hz}

c) Wave X travels faster and the beat frequency is about

31\,\text{Hz}

d) Wave Y travels faster and the beat frequency is about

25\,\text{Hz}