Question: Treat the problem of wave propagation along a string loaded with particles of two different masses, m and m, which alternate in placement; that is,

Treat the problem of wave propagation along a string loaded with particles of two different masses, m€™ and m€™€™, which alternate in placement; that is,

Show that the w €“ k curve has two branches in this case, and show that there is attenuation for frequencies between the branches as well as for frequencies above the upper branch.

Sm', for j even m

Sm', for j even m", for j odd ,

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