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## Homework Statement

a stationary sound wave has a series of nodes. The distance between the first and the sixth node is 30.0 cm. What is the wavelength of the sound waves?

## Homework Equations

## The Attempt at a Solution

well no idea about it

but in my attempt to solve it, i tried assuming 2L = [tex]\lambda[/tex]

but there are 6 nodes so [tex]\lambda[/tex] = [tex]\frac{1}{3}[/tex]L

by substituting the value of dist, i get [tex]\lambda[/tex] = 10cm

which is wrong. the ans is 12.0 cm

i wonder how to solve it