Homework Help: physics

Posted by Melissa on Tuesday, June 5, 2012 at 2:40pm.

The first resonant length of a closed air column occurs when the length is 30.0cm . What will the second and third resonant lengths be

physics - Elena, Tuesday, June 5, 2012 at 2:52pm
L1 = λ/4,
λ =4•L =4•30 =120 cm,
L2 =3 •λ /4 =3•120/4=90 cm,
L3 = 5•λ /4 =5•120/4=150 cm,
physics - Melissa, Tuesday, June 5, 2012 at 4:55pm
Thanks:)

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