Question

which of these waves has the highest frequency?

Explanation:

Step1: Recall frequency - wavelength relation

Frequency is the number of waves that pass a fixed point in a given amount of time. The more waves in a given space, the higher the frequency.

Step2: Analyze the waves

Wave 3 has the most number of cycles in the given horizontal space compared to wave 1 and wave 2. So it has the highest frequency.

Answer:

3