Question

highest frequency

Explanation:

Step1: Recall frequency definition

Frequency is the number of cycles (oscillations) per unit time. More cycles in the same time mean higher frequency.

Step2: Compare the three graphs

• Top graph: 3 cycles.
• Middle graph: Many more cycles (dense waves).
• Bottom graph: Fewer cycles than middle, more than top? Wait, middle has the most cycles in the visible time span. Wait, the "Highest frequency" box is top - no, wait, the middle graph (blue, dense) has more cycles per unit length (since x - axis is same for all, assuming). Wait, the middle graph (second row, right) has the most number of oscillations (waves) in the given space. So to match "Highest frequency", we need the graph with most cycles. The middle graph (the blue, tightly coiled one) has the highest frequency. Wait, the first column has "Highest frequency" as a label, so we need to put the graph with highest frequency in that cell. Wait, the three graphs: top (purple, 3 waves), middle (blue, many waves), bottom (light blue, moderate waves). So the middle graph (second row, right) has the highest frequency, so we place it under "Highest frequency"? Wait, the question is probably to identify which graph has the highest frequency. So the middle graph (the one in the middle row, right) has the most cycles, so highest frequency.

Answer:

The Middle Graph (the blue, tightly - coiled wave in the middle row, right)