In a Kundt's tube experiment a brass rod...

In a Kundt's tube experiment a brass rod 120 cm long was used. If had a fundamental frequency of `1400 Hz`. The gas in the tube was `CO_(2)` at `20^(@)C` and the disatance between nodal heaps of powder was found to be 9 cm. Calculate the velocity of sound in brass and in `CO_(2)` at `0^(@)C`.

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The correct Answer is:

`C (CO_(2)) = 243.3 ms^(-1) " at " 0^(@)C, C ("brass") = 3243.3 ms^(-1) " at " 0^(@)C`

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