A) 300 m/s
B) 200 m/s
C) 150 m/s
D) 75 m/s
Correct Answer: B
Solution :
For closed pipe \[{{n}_{1}}=\frac{v}{4l}\Rightarrow 250=\frac{v}{4\times 0.2}\]\[\Rightarrow v=200\,m/s\]You need to login to perform this action.
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