A steel wire is used to stretch a spring...

A steel wire is used to stretch a spring. An oscillating magnetic field drives the steel wire back and forth. A standing wave with three antinodes is created when the spring is stretche 8.0 cm. What stretchof the spring (in cm) produces a standing wave with two anti nodes?

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Verified by Experts

The correct Answer is:

`18.00`

`3/(2l)sqrt((kx)/(mu))=2/(2l)sqrt((kx)/(mu))`
`3sqrt(2)=sqrt(x)implies18=x`

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