`AB` is a cylinder of length `1m` fitted with a thin flexible diaphragm `C` at the middle and other thin flexible diaphragms `A` and `B` at the ends. The portions `AC` and `BC` contain hydrogen and oxygen gases respectively. The diaphragms `A` and `B` are set into vibrations of same frequency. What is the minimum frequency of these vibrations for which diaphragms `C` is a node? (Under the conditions of experiment `v_(H_(2) = 1100m//s`, `v_(0_(2)` = `300m//s`).

Options

A. 1650 Hz
B. 1560 Hz
C. 650 Hz
D. 560 Hz