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We know that when we speak sound waves are created. The air particles compress and rarefy and pressure is more at the nodes and less at anti-nodes. But can we say the same thing about waves on a string,- that pressure is more at the nodes than the anti-nodes?

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2 Answers 2

up vote 5 down vote accepted

Waves on a string are transverse waves not longitudinal waves. They are not variations in pressure, but variations in the displacement of the string. The (average) displacement is greatest at the anti-nodes and zero at the nodes.

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Roughly explaining John's answer - but visually..!

When you wiggle a sting (using a good resonator), you'd see something like this... The structure clearly reveals Transverse vibrations.

String

If you still don't understand, Here's a good simulation for that...

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