Question

What is the phase difference between particle being on either side of node?

Answer 1

The phase difference between a node and its nearest antinode is or 90 degrees. This can be seen by thinking of the wave as a simple sine function. There is a node at 0, then again at , before the whole thing begins to repeat at . The antinodes are half way between each pair of adjacent nodes, at , , etc

Answer 2

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The phase difference between a node and its nearest antinode is π2π2 or 90 degrees. This can be seen by thinking of the wave as a simple sine function.

There is a node at 0, then again at ππ, before the whole thing begins to repeat at 2π2π.

The antinodes are half way between each pair of adjacent nodes, at π2π2, 3π23π2, etc.