Question:
A Kundt's tube apparatus has a steel rod of length $1.0 \mathrm{~m}$ clamped at the centre. It is vibrated in its fundamental mode at a frequency of $2600 \mathrm{~Hz}$. The lycopodium powder dispersed in the tube collects into heaps separated by $6.5 \mathrm{~cm}$. Calculate the speed of sound in steel and in air.
Solution:
