To find the frequency of the wave, we need to understand the definition of frequency. Frequency is the number of complete waves (or cycles) that pass a given point per unit of time, usually measured in Hertz (Hz), which is equal to one cycle per second.
Here’s a step-by-step process to find the frequency:
1. Identify the given information:
- Number of waves passing a point = 4 waves
- Time taken for these waves to pass = 1 second
2. Formula for frequency:
[tex]\[
\text{Frequency} (f) = \frac{\text{Number of waves}}{\text{Time (in seconds)}}
\][/tex]
3. Substitute the given values into the formula:
[tex]\[
f = \frac{4 \text{ waves}}{1 \text{ second}}
\][/tex]
4. Calculate the frequency:
[tex]\[
f = 4 \text{ Hz}
\][/tex]
Therefore, the frequency of the wave is 4 Hz.
Hence, the correct answer is:
[tex]\[ \boxed{4 \text{ Hz}} \][/tex]
