a student rings a brass bell with a frequency of 300 hz. the sound wave travels through brass, air, and…
a student rings a brass bell with a frequency of 300 hz. the sound wave travels through brass, air, and glass. what is the wavelength of the wave in brass?\n\n| medium | wave speed (m/s) |\n| ---- | ---- |\n| brass | 4,700 |\n| air | 346 |\n| glass | 5,640 |\n\na. 0.64 m\nb. 16 m\nc. 0.064 m\nd. 1.6 m
Answer
Explanation:
Step1: Recall wave - speed formula
The wave - speed formula is $v = f\lambda$, where $v$ is the wave speed, $f$ is the frequency, and $\lambda$ is the wavelength. We want to find $\lambda$, so we can re - arrange the formula to $\lambda=\frac{v}{f}$.
Step2: Identify values from the table
The frequency $f = 300$ Hz and the wave speed in brass $v = 4700$ m/s.
Step3: Calculate the wavelength
Substitute the values into the formula: $\lambda=\frac{4700}{300}\approx15.67$ m $\approx16$ m.
Answer:
B. 16 m