A Level Physics Practice Exam 2026 - Free A Level Physics Practice Questions and Study Guide

In a stationary wave, nodes are points where there is no movement, resulting in a minimum amplitude. On the other hand, antinodes are points where the amplitude of the wave is at its maximum.

When considering the positions of nodes and antinodes in a stationary wave, it's important to note that antinodes are always located halfway between two nodes. This configuration occurs because the wave oscillates up and down in a manner that creates these distinct points: nodes where the displacement is zero and antinodes where it reaches its maximum. Thus, the positioning of antinodes directly between nodes reflects the nature of wave interference in stationary waves.

In summary, the correct answer highlights the fundamental property of stationary waves, where antinodes represent the highest points of amplitude and are indeed found centrally located between two successive nodes.