## Question

###### Two open organs pipes of fundamental frequencies $v_{1}$ and $v_{2}$ are joined in series. The fundamental frequency of the new pipe so obtained will be(a) $v_{1}+v_{2}$(b) $frac{v_{1} v_{2}}{left(v_{1}+v_{2}ight)}$(c) $frac{v_{1} v_{2}}{v_{1}-v_{2}}$(d) $sqrt{left(v_{1}^{2}+v_{2}^{2}ight)}$

Two open organs pipes of fundamental frequencies $v_{1}$ and $v_{2}$ are joined in series. The fundamental frequency of the new pipe so obtained will be (a) $v_{1}+v_{2}$ (b) $frac{v_{1} v_{2}}{left(v_{1}+v_{2} ight)}$ (c) $frac{v_{1} v_{2}}{v_{1}-v_{2}}$ (d) $sqrt{left(v_{1}^{2}+v_{2}^{2} ight)}$

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