A) 175
B) 350
C) 525
D) 700
Correct Answer: B
Solution :
Resonance tube is a closed organ pipe is having an air column of variable length. If the frequency of fork n, then speed of sound is given by \[v=2n({{l}_{2}}-{{l}_{1}})\] where\[{{l}_{1}}\]and\[{{l}_{2}}\]are length of air column. Given,\[n=500\]cycles/s, \[{{l}_{2}}=52\,cm=52\times {{10}^{-2}}m\] \[{{l}_{1}}=17\,cm=17\times {{10}^{-2}}m\] \[\therefore \] \[v=2\times 500(0.52-17)\times {{10}^{-2}}\] \[\Rightarrow \] \[v=350\text{ }m/s\]You need to login to perform this action.
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