A) 2800 m/s
B) 3200 m/s
C) 1600 m/s
D) 2000 m/s
Correct Answer: C
Solution :
[c] The length of the rod (L), \[=0.2=\frac{\lambda }{2}\]\[\Rightarrow \]\[\lambda =0.4\,m\] \[\therefore \] the velocity of the sound in gas (v), \[=v\times \lambda =4000\times 0.4=1600\,m/s\]You need to login to perform this action.
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