Wave Optics

To find the speed of a wave, we use the basic wave speed formula:
where:
= speed of the wave
= frequency of the wave
= wavelength of the wave
Step 1: Write down the given values
Frequency
Wavelength
Step 2: Substitute into the formula

Step 3: Interpretation
The wave moves along the string at a speed of 100 meters per second. This means each wave crest (or any point on the wave) travels 100 meters in one second.