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A frequency generator sends a [tex]$550 \, \text{Hz}$[/tex] sound wave through both water and ice.

\begin{tabular}{|c|c|c|}
\hline
Medium & \begin{tabular}{c}
Temperature \\
[tex]$\left(^{\circ} \text{C} \right)$[/tex]
\end{tabular} & \begin{tabular}{c}
Speed of \\
Sound [tex]$(\text{m/s})$[/tex]
\end{tabular} \\
\hline
Ice & 0 & [tex]$3200 \, \text{m/s}$[/tex] \\
\hline
Water & 25 & [tex]$1500 \, \text{m/s}$[/tex] \\
\hline
Steam & 100 & [tex]$346 \, \text{m/s}$[/tex] \\
\hline
\end{tabular}

What is the difference in wavelength between the wave produced in ice and the wave produced in water?

A. [tex]$2.1 \, \text{m}$[/tex]

B. [tex]$3.1 \, \text{m}$[/tex]

C. [tex]$5.2 \, \text{m}$[/tex]

D. [tex]$8.5 \, \text{m}$[/tex]

Sagot :

To find the difference in wavelength between the wave produced in ice and the wave produced in water, we need to follow a systematic approach. Here are the steps:

1. Understand the given data:
- Frequency of the sound wave: \( f = 550 \) Hz
- Speed of sound in ice: \( v_{\text{ice}} = 3200 \) m/s
- Speed of sound in water: \( v_{\text{water}} = 1500 \) m/s

2. Calculate the wavelength in each medium:
The formula to calculate the wavelength (\( \lambda \)) is:
[tex]\[ \lambda = \frac{v}{f} \][/tex]
where \( v \) is the speed of sound in the medium, and \( f \) is the frequency of the sound wave.

3. Calculate the wavelength in ice:
[tex]\[ \lambda_{\text{ice}} = \frac{v_{\text{ice}}}{f} = \frac{3200 \, \text{m/s}}{550 \, \text{Hz}} \approx 5.818 \, \text{m} \][/tex]

4. Calculate the wavelength in water:
[tex]\[ \lambda_{\text{water}} = \frac{v_{\text{water}}}{f} = \frac{1500 \, \text{m/s}}{550 \, \text{Hz}} \approx 2.727 \, \text{m} \][/tex]

5. Find the difference in wavelengths:
[tex]\[ \Delta \lambda = \lambda_{\text{ice}} - \lambda_{\text{water}} = 5.818 \, \text{m} - 2.727 \, \text{m} \approx 3.091 \, \text{m} \][/tex]

Therefore, the difference in wavelength between the wave produced in ice and the wave produced in water is approximately \(3.1 \, \text{m}\).

Among the given options:
- \(2.1 \, \text{m}\)
- \(3.1 \, \text{m}\)
- \(5.2 \, \text{m}\)
- \(8.5 \, \text{m}\)

The correct answer is [tex]\(3.1 \, \text{m}\)[/tex].